$12,000 reward offered as authorities seek gunman who shot at 22 vehicles in SE Michigan

A $12,000 reward is being offered as investigators from local and state police agencies work to catch a man suspected of firing shots on at least 22 cars in Michigan.

The Oakland County sheriff's department said Wednesday that Crime Stoppers of Mid-Michigan added $1,000 to the reward, upping the total beyond the $11,000 offered by the federal Buxreau of Alcohol, Tobacco and Firearms.

The shootings happened in four southeastern Michigan counties last week, mainly on or near 100 miles of Michigan interstate highway. The first occurred Oct. 16 and the last was reported Thursday. No injuries have been reported.

Tests from the Oakland County Sheriff's forensics lab confirm that seven bullet fragments came from the same handgun.  The caliber of those bullets has yet to be determined

A task force investigating the shootings has received more than 250 tips. Authorities are working to follow up on those.

Authorities ask anyone with possible information on the shootings to call 1-800-SPEAK-UP.

Read more: Mysterious shots fired at vehicles in Wixom