Olen Ware, 20, and Keaton Cooper, 21, are charged with the murder of Peggy Ariza. She was shot in the chest by one of at least three masked gunmen who barged into her northwest Harris County home.
Men overpowered Ariza's 17-year-old daughter at the door and forced their way in, and then shot Ariza when she came downstairs to help when she heard her daughter screaming.
Investigators have not said what led them to Ware and Cooper.
