Portage County sheriff's deputies say the shot that killed Travis Mills was accidentally self inflicted.

Authorities say the 27-year-old Mills suffered the wound in a car in Almond on Saturday. He was found unresponsive about three hours later when the car was pulled over by police in Stevens Point. Mills was pronounced dead at the hospital.

Two other people in the car were jailed after the incident. 28-year old Troy Sullivan, another passenger, was taken into custody on a probation hold from Portage County.

The driver, 46-year old Adrien Facundo, was accused of drunk driving and was also taken into custody on an outstanding warrent.

Authorities say the gun used was a small caliber.

They say they're still investigating the actions of Facundo and Sullivan after the shooting and will forward their findings to the district attorney for possible charges.