DR KATHERINE RAMSLAND

One of America's most notorious serial killers, Dennis Rader, known as The BTK Killer, spent decades tormenting Wichita, Kansas. He brutally tortured and murdered 10 people while also taunting the tight-knit community, local media and police with letters detailing his horrific crimes. Now, 14 years after he was caught, his daughter, Kerri Rawson, breaks her silence to ABC News correspondent Deborah Roberts in her first television interview for a “20/20” documentary on Rader. Kerri discusses her ...