Where did you get this info? I believe the prosecutor claims another officer broke open the door, Jones came through with his weapon still in it's holster and was shot below his vest. Also , Jones was not a member of the unit serving the warrant but was asked to ride along because it was his informant.
I went off of Maye's testimony. He heard kicking on the door and fired. He claims he heard police identify themselves and slid the gun away after he shot. He never said he saw police. Further adding to the closed door theory is that Maye himself was not shot by police in return gun fire. The police are trained not to shoot blindly into a room through a closed door.