The reward for clues leading to the discovery of Officer Collin Rose’s killer has now gone up.

The Detroit News reports that on Tuesday, the Detroit Police Department announced that the reward has gone up to $52,000, with funds from the ATF, FBI, Crime Stoppers of Michigan and DTE Energy.

Officer Rose, of the Wayne State University Police, was shot in the head the night of November 22 while he was investigating a man riding a bike near campus. Rose died the next day. The Richland native was posthumously promoted to Sergeant.

Authorities did make an arrest a short time after the shooting, but that man was released due to lack of evidence. The DPD released photos of items that are suspected to have been used by Rose's killer, including a blue bike and a yellow flashlight found at the scene.

Credit: Detroit Police Department/Facebook

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