Suspect David Tramell McFarland. Handout photo.
Police are searching for the suspected triggerman in the shooting deaths of three men, including a teenager, during a robbery in southeast Houston last month.
David Tramell McFarland, 20, is charged with capital murder in the slayings of Narciso Briagas, 26; Miguel Angel Morales, 30; and Roman Gabriel Barragan, 16.


