Adam Lankford is a criminal-justice professor at the University of Alabama and the author of The Myth of Martyrdom: What Really Drives Suicide Bombers, Rampage Shooters, and Other Self-Destructive Killers.

Three years ago when a Jordanian suicide bomber killed 7 U.S. intelligence officers were killed, jihadists praised his bravery and the CIA blamed his ideology, but bullying explains his treachery. Adam Lankford on how we misunderstand the psychology of suicide bombers.