Officer Down

The Chicago Police Department says Samantha Mack shot her partner, Fred, during the confusion of a bungled pursuit. Mack says it was their quarry, a violent pedophile named Marco Trovic, who fired the deadly round in that darkened room. But Mack was knocked out and can't really say what happened.

When no evidence of Trovic is found on the scene and the bullet is shown to have come from Mack's own gun, the Department labels Fred's death as a case of friendly fire.Back at the station, i…