The 'Unabomber' killed 3 people and injured more than 20 others during his mail-bombing campaign. What's his life in prison like today?

We speak with author Jaime Gehring about her experience growing up in remote Montana woods next to Ted Kaczynski, who killed three people and injured 23 others between 1978 and 1995.

In very rare instances, people who suspect their fathers, brothers or other family members are long-sought serial killers are dead right and help authorities solve a notorious cold case. But far more often, they pester police with circumstantial evidence backing up wild theories.

To better understand package bombs and the serial bombers who employ them, like Austin serial bomber Mark Conditt, A&E True Crime spoke with Tina Sherrow, a retired bomb technician and certified explosives specialist for the ATF.

Did you know killer Ted Kaczynski, also known as the Unabomber, had an IQ of 167 and went to Harvard when he was only 16 years old?