MADISON, Wis. -- Attorney General J.B. Van Hollen says no criminal charges will be brought as a result of anyone's interaction with Tyler Peterson from the time he killed six people in Crandon, injured another and then later took his own life.

Van Hollen released findings of the state investigation into the Crandon shooting today.

He says Peterson, a sheriff's deputy, was wounded by a police sniper in the woods near a friend's house and then "apparently shot himself three times."

The lead state investigator, Bradley Kust, explained how Peterson could have shot himself in the head three times. He said in prepared remarks, that Peterson's first two shots entered his chin, but it was a third shot to the right side of his head that caused his death.

The DOJ's timeline says Peterson went to a house party in hopes of making up with ex-girlfriend Jordanne Murray during the early house of October seventh.

Asked to leave, Peterson got an assault rifle from his truck, went back inside and started shooting. He killed Murray and five of her friends. Another was injured but survived.

Peterson then fled to a friend's home. Hours later, he walked into woods where he was wounded in the left biceps by the sniper. The justice department's timeline says he then killed himself shortly after noon.