In a rare interview, convicted serial killer David Berkowitz told CBS News he took "a big step" talking about his past.

It’s just what we do, we tell ourselves, as if we have no choice. But choice is a very important resource for walking through the darkness. We DO have a choice.

The event was called “Walk Out of Darkness.” The walk brought people together who’ve lost someone to suicide. “I just want people to know it happens and you shouldn’t feel alone and we ...