A new investigation claims that one of the suspected Boston Marathon bombers heard voices in his head. "The Boston Globe" reports Tamerlan Tsarnaev  believed in "majestic mind control," which is a belief in an alternate personality directed by someone else. The 26-year-old was killed in a shootout with police in April. The report says Tamerlan and his younger brother Dzhokhar [[ jo-HAR ]] were both responsible for planning the bombings that killed three and wounded more than 260 others.