LITTLE FALLS, Minn. (AP) — Authorities now call the death of a deer hunter last month in Morrison County of central Minnesota a homicide.

Forty-one-year-old Terrence Brisk was found shot to death near Little Falls Nov. 7. Investigators weren't sure then it was accidental or intentional. But based on follow-up leads, multiple interviews and the medical examiner's findings, they're now calling it a homicide.

Morrison County Sheriff Shawn Larsen said at a news conference Wednesday his office is committed to working the case around the clock to get the answers the Brisk family and the community deserve.

Authorities are still searching for Brisk's gun, which they think was stolen from him. It's an older Winchester AE .30-30 lever action rifle with a wooden stock and forearm and no sling.

A $20,000 reward has been offered.