That was the shooting in san bernardino, california which was perpetrated by a husband and wife. 14 people died. what's happening to our boys and how can we help colleague steph ruhle sat down with a group of young men to explore the prs pressures of masculinity and why some eventually turn to violence. >> if you want to be man enough, you don't cry. >> you can't show pain. you can't show upset. >> man up, dominate, turn it all off. >> reporter: emotional struggle, a fact of life boys find obvious, but it's largely gone ignored. until recently tragedy forced the conversation. >> when the parkl...