1. Exploring the mind of a killer

Neuroscientist Jim Fallon talks about brain scans and genetic analysis that may uncover the rotten wiring in the nature (and nurture) of murderers.

2. How childhood trauma affects health across a lifetime

Pediatrician Nadine Burke Harris explains that the repeated stress of abuse, neglect and parents struggling with mental health or substance abuse issues has real, tangible effects on the development of the brain.

3. My son was a Columbine shooter. This is my story

Sue Klebold is the mother of one of the two shooters who committed the Columbine High School massacre. Klebold explores the intersection between mental health and violence, advocating for parents and professionals to continue to examine the link between suicidal and homicidal thinking.