Photo of one of the police officers shot dead by snipers

43-year-old Dart Officer Brent Thompson has been identified as one of the 11 police officers shot by Snipers during a protest over the recent killings of Alton Sterling and Philando Sterling by police..

Three of the gunmen who shot and killed the policemen are in custody. A fourth man, who was engaged in a shootout with police from a parking garage, has reportedly killed himself.