Police spokesman Sonny Jackson told The Denver Post that the suspect is shown in the video walking in a crowd away from the scene of the shooting as sirens wailed in the background.
The suspect, a black male who was wearing a brown and white checkered shirt, can be seen about six seconds into the video, he said.
“We are seeking this individual as we believe he assisted the primary suspect after the shooting,” Jackson said in an email to the newspaper.
Other witnesses had already told police, “Uh… what?”
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