Jan. 17, 2011
Bomb technicians defuse a sophisticated improvised explosive device (IED) found in a backpack along the Spokane, Wash., route of a Martin Luther King Jr. Day parade with 1,500 marchers. Using forensic clues found in the dismantled bomb, officials about two months later identify and arrest Kevin William Harpham, a longtime neo-Nazi. Harpham had posted more than 1,000 messages to the neo-Nazi Vanguard News Network since 2004, when he was a member of the neo-Nazi National Alliance. Harpham also had contributed to the white supremacist Aryan Alternative newspaper. He is indicted on one count of attempted use of a weapon of mass destruction and one count of possessing an IED. Later, federal hate crime charges are added. In December 2011, Harpham was sentenced to 32 years after pleading guilty to attempted use of a weapon of mass destruction and placing that bomb to carry out a hate crime.

March 10, 2011
Six members of the antigovernment Alaska Peacemakers Militia, including its leader, Francis Schaeffer Cox, 28, are arrested and charged with plotting to kill or kidnap state troopers and a Fairbanks judge. The group already has a large cache of weapons, including a .50-caliber machine gun, grenades and a grenade launcher. Cox earlier identified himself as a “sovereign citizen.” Cox is convicted in June 2012 on nine counts, including conspiring to kill a judge and law enforcement officials. He is sentenced in January 2013 to almost 26 years in federal prison. Lonnie Vernon, 56, and his wife, Karen, 66, plead guilty in August to charges they plotted to kill a federal judge and an IRS agent involved in a tax case against them. The Vernons are also sentenced in January 2013. Lonnie receives almost 25 years in federal prison while his wife receives 12 years. Another member, Coleman Barney, 38, is found guilty of weapons charges and sentenced in September 2012 to five years in federal prison.

May 14, 2011
Three masked men break into the Madrasah Islamiah, an Islamic center in Houston, and douse prayer rugs with gasoline in an apparent attempt to burn the center down. Images of the men are captured on surveillance cameras, but they are not identified. The fire is put out before doing major damage.

May 25, 2011
A man with a long history of menacing abortion clinics is arrested on weapons charges after he accidentally shoots a pistol through the door of a Madison, Wis., motel room. Ralph Lang, 63, tells police he planned to kill a doctor and workers at a nearby Planned Parenthood clinic. Lang is sentenced to 10 years in prison in 2013.

August 24, 2011
Cody Seth Crawford, 24, is arrested on federal charges accusing him of the Nov. 28, 2010, arson of the Salman Alfarisi Islamic Center in Corvallis, Ore. The firebombing occurred two days after a former Oregon State University student was arrested in a plot to detonate a car bomb during Portland's annual tree-lighting. Crawford had ranted about Muslims and described himself as a Christian warrior after the arson. In early 2014, Crawford was still awaiting trial.

October 5, 2011
White supremacist ex-convict David "Joey" Pedersen, 31, and his girlfriend, Holly Ann Grigsby, 24, are arrested in California after a murderous rampage in three states. Grigsby tells police that she and Pedersen "were on their way to Sacramento to kill more Jews." The first killed were Pedersen's father and stepmother in Everett, Wash. Another man was killed in Lafayette, Ore., because the pair thought he was Jewish. An African-American man was found shot to death in Eureka, Calif. Pederson earlier served time for threatening to kill the federal judge who handled the Ruby Ridge case of white separatist Randy Weaver. Pederson pleads guilty in March 2012 to killing his father and stepmother, and receives two life sentences. He still faces federal charges in all four murders. Grigsby pleads not guilty and awaits trial.

November 1, 2011
Four members of an unnamed North Georgia militia are arrested in an alleged plot to bomb federal buildings, attack Atlanta and other cities with deadly ricin, and murder law enforcement officials. The men – Frederick Thomas, 73, Samuel J. Crump, 68, Dan Roberts, 67, and Ray H. Adams, 65 – allegedly discussed "taking out" a list of officials to "make the country right again" and scouted buildings in Atlanta to bomb. Authorities say the plot was inspired by an online novel, Absolved, written by longtime Alabama militiaman Mike Vanderboegh. Thomas, the accused ringleader, and Roberts plead guilty in April 2012 to charges of conspiring to possess explosives and firearms. Each is sentenced in August 2012 to five years in federal prison for conspiring to obtain an unregistered explosive device. Crump and Adams are convicted in January 2014 of conspiring to produce a toxic agent to poison government officials. In November 2014, they are each sentenced to 10 years in prison.

December 10, 2011
Four Army soldiers at Fort Stewart, Ga., later identified as members of the terror group Forever Enduring, Always Ready (FEAR), are arrested in the murder of 19-year-old former soldier and FEAR member Michael Roark and his 17-year-old girlfriend, Tiffany York. The two were apparently killed because FEAR leader Isaac Aguigui, 22, feared Roark would talk about the group’s plans to take over the Army base, overthrow the government, assassinate a future president, and blow up a dam and poison the apple crop in the state of Washington. Pfc. Aguigui funded the group, buying $87,000 in weapons and a large amount of drugs with a $500,000 insurance payment he received after the death of his pregnant wife. Pfc. Michael Burnett pleads guilty and agrees to testify against his FEAR comrades. In 2012, seven more people are arrested in connection with FEAR’s activities. In April 2013, the Army charges Aguigui with killing his wife, whose death was initially ruled accidental, and their unborn child. In July 2013, Aguigui pleads guilty in the murders of York and Roark, and is sentenced to life in prison. Two other soldiers, Pvt. Christopher Salmon and Sgt. Anthony Peden, are expected to be tried in the double murder in 2014. A court martial for Aguigui in his family’s death was also expected.

April 17, 2012
Joseph Benjamin Thomas and Samuel James Johnson of Mendota Heights, Minn., are indicted on federal weapons and drug charges after a probe of their alleged plans to create an “Aryan Liberation Movement” and attack minorities, leftists and government officials. Prosecutors say Thomas planned to attack the Mexican consulate in St. Paul with a truck loaded with flaming barrels of oil and gasoline. Johnson, a former leader of the neo-Nazi National Socialist Movement with prior convictions for armed crimes, was scouting for a training compound in Illinois or Minnesota and seeking to recruit others into his group, court papers say. In the end, Johnson pleads guilty in 2012 to being a felon in possession of weapons and is sentenced to 15 years in prison. Thomas pleads to intent to distribute 50 grams of methamphetamine. In April 2013, he is sentenced to 10 years in prison.

June 17, 2012
Anson Chi, 33, is seriously injured when he detonates a bomb in an effort to destroy an Atmos Energy natural gas pipeline in Plano, Texas. Chi is an avid tax protester who has posted numerous videos, statements and rants on the Internet about the alleged evils of the Federal Reserve, the IRS, President Obama and the government. He had been a fugitive since 2009, when he violated probation in California on a weapons charge. Chi pleads guilty in 2013 to possessing an unregistered explosive and malicious use of an explosive, and is sentenced to 22 years in prison.

August 5, 2012
Neo-Nazi skinhead Wade Michael Page, 40, opens fire with a 9 mm handgun at a Sikh temple in Oak Creek, Wis., killing six and critically wounding three, including a police officer. Wounded by police, Page then shoots and kills himself at the scene. A U.S. Army veteran who was discharged in 1998 for “patterns of misconduct,” Page was a “patched” member of the Northern Hammerskins, a chapter of the Hammerskin Nation, a violent, racist skinhead group. He was also a fixture on the white power music scene who played in the band End Apathy and several others.

August 16, 2012
Seven people with ties to the antigovernment “sovereign citizens” movement allegedly ambush and murder Louisiana sheriff’s deputies Brandon Nielsen, 34, and Jeremy Triche, 27. The attack comes in a trailer park near New Orleans, where the deputies pursued suspects following the shooting and wounding of another deputy working as an off-duty security guard at an oil refinery. Those arrested include the group’s leader, Terry Lyn Smith, 44, Smith’s wife, Chanel Skains, and his sons, Derrik Smith and Brian Smith. Others are Brittany Keith, Kyle David Joekel and Teniecha Bright. Brian Smith is charged with first-degree murder and the others with related charges. The group, which traveled the country doing construction work, possess a stockpile of weapons. Its members have outstanding warrants in Nebraska, Tennessee and Louisiana.

September 4, 2012
Christopher Lacy, 36, shoots California Highway Patrol officer Kenyon Youngstrom at close range after the officer stops Lacy’s vehicle, which had an obstructed license plate, on I-680 near Alamo. Lacy is fatally shot by another trooper, and Youngstrom dies the next day. An investigation into Lacy’s background reveals a large amount of antigovernment “sovereign citizens” literature on several computers at his home.

December 21, 2012
FBI agents arrest Richard Schmidt, the owner of a sporting goods store in Bowling Green, Ohio, for trafficking in counterfeit goods and discover a cache of 18 weapons in his home and store, including AR-15 assault rifles, 9 mm and Sig Sauer pistols and shotguns, and more than 40,000 rounds of ammunition. Schmidt is unable to own the weapons legally because he is a felon who served 13 years for murdering a Latino man and wounding two others in a 1989 traffic dispute. Officials also find evidence of Schmidt’s neo-Nazi views, including video and Nazi paraphernalia, and the Anti-Defamation League identifies him as a longtime member of the neo-Nazi National Alliance. Authorities also discover a notebook they say Schmidt was using to track Detroit-area Jewish and African-American leaders, apparently as a prelude to some kind of attack. Schmidt is indicted in Toledo in January 2013 on three federal counts of possessing illegal firearms, body armor and ammunition, and one count of trafficking in counterfeit goods. He pleads guilty in July 2013 to violating federal firearms laws and is sentenced in December to nearly six years in prison.

June 18, 2013
Glendon Scott Crawford, 49, and Eric J. Feight, 54, are arrested in upstate New York after a yearlong investigation and charged with conspiracy to provide material support to terrorists for use of a weapon of mass destruction. Crawford is a member of the United Northern and Southern Knights of the Ku Klux Klan and an industrial mechanic with General Electric; Feight is an outside contractor for GE with engineering skills. Officials say the two men, who call themselves “The Guild,” are well along the way toward building a truck-borne radiation weapon could be turned on remotely and that they hoped to use in the mass murder of Muslims and others. Crawford, who was said to be angry at President Obama, allegedly referred to the device as “Hiroshima on a light switch.” The men are arrested after unsuccessfully seeking funding from Jewish groups and the Loyal White Knights of the Ku Klux Klan. In January 2014, Crawford is indicted for conspiring to use a weapon of mass destruction and related charges, while his alleged accomplice is reportedly in talks about a plea agreement that would involve testifying against Crawford.

Aug. 18, 2013
David Allen Brutsche, 42, and a woman described as Brutsche’s roommate, Devon Campbell Newman, 67, are arrested in Las Vegas after a months-long investigation into an alleged plot to kidnap and execute police officers. Both Brutsche, a convicted felon and registered sex offender, and Newman consider themselves “sovereign citizens” and have conducted recruiting seminars on sovereign ideology, officials say. Authorities say they intended to kidnap a police officer at random, detain the officer in a crude jail in a vacant house, “try” the officer in a “common-law” court, then execute the officer. The two are charged with felony conspiracy to commit murder, conspiracy to commit kidnapping, and attempted kidnapping. Newman pleads guilty in December 2013 to conspiracy to commit false imprisonment, a misdemeanor, and is sentenced to a year of probation and ordered to have no contact with Brutsche. Brutsche, who renounces sovereign citizen ideology during court proceedings, pleads guilty in February 2014 to conspiracy to kidnap police officers and receives five years’ probation. In a separate case involving failure to register as a sex offender, he receives 188 days in jail in addition to time served.

March 27, 2014
Robert James Talbot Jr., 38, is arrested in Katy, Texas, by FBI agents who say he was about to rob an armored car. He is alleged to have been plotting to use C-4 explosives and weapons to rob banks and armored cars, blow up government buildings and mosques, and kill police officers. Prosecutors say he is behind a Facebook page called “American Insurgent Movement,” on which he posted antigovernment screeds, called for violence against public officials, and ranted about Muslims and LGBT people. He used the page to attempt to persuade others to join his cause. Talbot faces federal charges of attempted interference with commerce by robbery, solicitation to commit a crime of violence and possession of an explosive material. The FBI opened an investigation into his activities in August 2013 after learning of his alleged desire to recruit others into terrorist activities. Talbot pleads guilty to all charges on Oct. 3, 2014. He faces up to 30 years in prison and $375,000 in fines.

April 13, 2014
Frazier Glenn Miller (aka Frazier Glenn Cross), 73, a longtime racist and anti-Semite, is arrested after a gunman opens fire at a Jewish community center and a Jewish retirement community in Overland Park, Kansas, a suburb of Kansas City. Three people are killed, including a 14-year-old Eagle Scout and his grandfather. Miller, a retired Army veteran and Green Beret, is the founder and former leader of the Carolina Knights of the Ku Klux Klan and the White Patriot Party, which he ran as paramilitary organizations in the 1980s. He was successfully sued by the SPLC for operating an illegal paramilitary organization and for using intimidation tactics against African Americans. Miller went underground in 1987 after he violated the court settlement and was convicted on criminal contempt charges. He was caught and served three years in federal prison on weapons charges in connection with plans to commit robberies and assassinate SPLC founder Morris Dees. As part of a plea deal, he testified against other Klan members in a 1988 sedition trial.

June 8, 2014
Jerad Miller, 31, and his wife, Amanda, 22, enter a pizza restaurant in Las Vegas, Nev., where two police officers are eating lunch. Jerad Miller fatally shoots officer Igor Soldo, 31. As his partner, Alyn Beck, 41, tries to react, Miller shoots him in the throat, then both Millers shoot Beck several times. The pair leave a swastika and a Gadsden flag on Beck’s body. The yellow flag, a symbol used by the antigovernment “Patriot” movement, features a coiled snake with the words “Don’t Tread On Me.” On Soldo’s body, they place a note: “This is the start of the revolution.” The couple leave the restaurant and walk to a nearby Walmart store, where Amanda Miller shoots and kills Joseph Wilcox, 31, before the Millers barricade themselves in the back of the store. Jerad is shot to death by police, and Amanda kills herself. The couple held strong antigovernment views. Jerad Miller’s Facebook page contained calls to impeach President Obama as well as statements about conspiracy theories popular among Patriot groups. Weeks earlier, the pair had been present at the Cliven Bundy ranch in Nevada, where militias had gathered in an armed standoff with the federal Bureau of Land Management over a grazing fee dispute. The Millers perceived law enforcement as “oppressors” and reportedly told neighbors they planned to kill police officers.

November 28, 2014
Armed with a .22-caliber rifle and an assault rifle, Larry Steve McQuilliams, 49, fires more than 100 rounds at a police station, a Mexican consulate, a federal courthouse and a bank in downtown Austin, Texas, during the pre-dawn hours. He also tries to set the consulate on fire before he is shot dead by police. No one is hurt in the attack, which causes extensive damage to the buildings. In a rental van, police find multiple propane cans fashioned into homemade bombs and a map of 34 targets, including two churches. They also find Vigilantes of Christendom. The 1990 book inspired a white supremacist doctrine known as Phineas Priesthood, which finds divine justification for violence against those seen by such “priests” as enemies of God. The Austin police chief describes McQuilliams, a felon, as a “homegrown American terrorist trying to terrorize our people” and says a note found in the book “discusses his rank as a priest in his fight against anti-God people.” Statements made in police interviews also tie him to ultra-conservative groups with anti-Semitic, anti-LGBT and racist views.