Although the final forensic determination could take several weeks, the attorney general said that Peterson had his personal .40-caliber Glock when police found him. The three gunshots to the head came from a .40-caliber.
"The three gunshot wounds to the head included two nonfatal rounds with entry points below the chin, and one fatal shot that entered Peterson through the right side of the head," Van Hollen said.
"Each of the three head shots were fired while the gun was in contact with his skin, or extremely close to the skin," he said. "These three head wounds are consistent with self-inflicted wounds, and not consistent with long-range rifle fire."