helmet, a tactical ballistic vest, ballistic leggings, a throat protector, and a groin protector and a gas mask. and black tactical gloves. law enforcement official tells nbc news hat holmes-hair was dyed red when he was arrested this morn. i ing. he told police he was the joker. all of his guns were purchased legally. they were purchased from two national chains, gander mountain and bass pro shop. he was a ph.d. candidate studying neuroscience. his apartment was rigged with explosives, but now is not cooperating with authorities and has retained legal counsel. they have called in bob technicians to evaluate the scene, have evacuated the buildings in that area. our investigation determined that his apartment is