CRANDON, Wis. (AP) -- Wisconsin Attorney General J.B. Van Hollen says an off-duty deputy who killed six people at Crandon early Sunday likely shot and killed himself.

He said at a news conference this afternoon at Crandon that 20-year-old Tyler Peterson was shot four times.

Van Hollen says Peterson was shot once in the left biceps from a distance and then three times in the head from a gun at close range.

The attorney general says two shots went in under Peterson's chin, while the third fatal shot entered through the right side of head.

Peterson died near a friend's home in Argonne, where he fled after shooting seven people.

One survived.

Van Hollen says Peterson went to Jordanne Murray's home about 2 a.m. Sunday and argued with her after accusing her of dating someone else.

Murray demanded Peterson leave, and he did - only to return with an AR-15 rifle.

The attorney general says Peterson didn't speak upon his return, but simply opened fire.