Video stills posted on http://www.dailymail.co.uk/news/article-2438620/Shocking-video-Range-Rover-crashing-bikers-surround-vehicle-annual-street-ride.html clearly show Frontline Soldiders MC as the primary participants in the assault of the range rover driver.
 
They've also begun to remove their Youtube videos posts, Twitter accounts and Instragram accounts:
 
https://www.facebook.com/frontlinesoldiersmc
 
CACHED TWITTER: http://webcache.googleusercontent.com/search?q=cache:P3GKANKE2Z4J:https://twitter.com/FLSMC+&cd=1&hl=en&ct=clnk&gl=us

CACHED CONTACT INFO FOUND ON CLUB HOME PAGE: http://webcache.googleusercontent.com/search?q=cache:FwfHWuD_FMEJ:www.frontlinesoldiersmc.com/%23!contact+&cd=3&hl=en&ct=clnk&gl=us
E-MAIL: FLSMC09@gmail.com
Contact #: (914) 365-9384 

Registrant:
 FRONT LINE SOLDIERS
 186 CHURCH STREET
 NEW ROCHELLE, NY 10805
 US
 
 Domain name: FRONTLINESOLDIERSMC.COM
 
 Administrative Contact:
    LINE SOLDIERS, FRONT  
    186 CHURCH STREET
    NEW ROCHELLE, NY 10805
    US
    +1.9145631409
 Technical Contact:
    LINE SOLDIERS, FRONT  
    186 CHURCH STREET
    NEW ROCHELLE, NY 10805
    US
    +1.9145631409
 
 Registration Service Provider:
    Yola, Inc,
 
 Registrar of Record: TUCOWS, INC.
 Record last updated on 10-May-2013.
 Record expires on 26-Sep-2018.
 Record created on 26-Sep-2010.
 
 Registrar Domain Name Help Center:
    http://tucowsdomains.com
 
 Domain servers in listed order:
    PDNS2.ULTRADNS.NET  
    PDNS4.ULTRADNS.ORG  
    PDNS6.ULTRADNS.CO.UK  
    PDNS5.ULTRADNS.INFO  
    PDNS3.ULTRADNS.ORG  
    PDNS1.ULTRADNS.NET