MINNEAPOLIS (WCCO) — Several billboards have been erected in North Minneapolis to help find the killer of 3-year-old Terrell Mayes.

On Dec. 26, 2011, a stray bullet hit Mayes while he was inside his home. He died a day later.

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Since the shooting, Minneapolis Police homicide investigators and other officers have been pursuing information and leads, but so far the killer remains at large.

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The billboards are a result of a joint collaboration with Clear Channel Outdoor, Crime Stoppers and the Minneapolis Police Department. Five billboards will be displayed.

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Crime Stopper’s reward for the killer is currently up to $10,000.