DC Superior Court Judge Rainey Brandt ruled on May 5 that the defense cannot mention police misidentification of a mass shooter in the trial of a defendant charged with aiding and abetting the incident. Cotey Wynn, 44, is charged with first-degree premeditated murder while armed, three counts of assault with intent to kill while armed, and four counts of possession of a firearm during a crime of violence for his alleged involvement in a mass sho…