The brother of an infamous serial killer who made the difficult decision to turn him in is sharing his story in Knoxville.
"I was afraid I might lose my brother to execution, I might lose my mother to the stress of the whole thing, so it was like 'where is my loyalty?'"
David Kaczynski was invited to speak at Knoxville's volunteer ministry center as part of his efforts to promote better understanding of mental illness.
His brother, Ted, received worldwide attention when he was revealed as the "Unabomber" in the 1990s. His homemade bombs left three people dead and 23 injured.
Eventually David realized Ted might be behind the attacks and alerted authorities, who found their suspect just before he mailed another bomb.
David has come to see his brother's actions as those of a deeply troubled and sick man. He says the volunteer ministry center is working to help those with mental illness before it's too late.
"I really applaud the work of the volunteer ministry center becaue they're working to reach those people who can be reached and connect them with housing, with treatment, and it's a win-win. I helps those people; it helps the community," he said.
As for Ted Kaczynski, he was sentenced to life in prison. David says he writes to him and has done so for years, but he has never received a response.