Authorities are asking for help identifying a gunman suspected of killing a pregnant woman and injuring two others in Brownsville. The Tennessee Bureau of Investigation and the Brownsville Police Department are investigating the killing of Alexis Branch on Sunday night. A man seen on surveillance near where the shooting happened is described as black, 5’3″ to 6’0″ tall and weighing between 200 to 220 pounds. Branch was 8 months pregnant.