https://www.deseret.com/1993/11/15/19076626/family-held-by-fear-abuse-and-death/
https://www.youtube.com/watch?v=Snj4SeBiAPg
https://truecrimecasehistories.com/worlds-worst-mom-theresa-knorr/
https://murderpedia.org/female.K/k/knorr-theresa.htm#google_vignette
https://www.facebook.com/notes/393855335128347/?paipv=0&eav=AfYjbauzj0RbaYzVYbv7Ivs9WcGKJrM2yo8NNxbIKUSEBZTvfA7vOvSVAhBiQUNdwEE&_rdr
https://the-line-up.com/behind-closed-doors-the-secret-life-of-the-knorr-family
https://web.archive.org/web/20131216183234/http://www.trutv.com/library/crime/notorious_murders/family/theresa_cross/2.html
https://news.google.com/newspapers?nid=1314&dat=19931115&id=cbsyAAAAIBAJ&pg=6814,4633405
https://news.google.com/newspapers?id=cbsyAAAAIBAJ&pg=2777%2C4588960
https://answersafrica.com/10-facts-you-need-to-know-about-theresa-knorr-and-her-life-of-crimes.html
https://www.amazon.com/Whatever-Mother-Says-Madness-Classics/dp/1250092868
https://www.goodreads.com/book/show/25834205-mother-s-day
https://www.investigationdiscovery.com/video/evil-lives-here-investigation-discovery/the-face-of-my-torturer