Dallas (WBAP/KLIF) – A second suspect has been arrested for the August 15th murders of two men in a Dallas game room. Dominic Cortez and Mark Noriega were shot to death in the game room near Military Parkway and North Jim Miller Road by two men who forced their way in through a back door. The killings were captured on the game room’s surveillance system, leading multiple informants to identify Dangelo Johns and William Walker as the killers. Johns was arrested Monday. Walker was arrested Friday. They are both in custody, charged with capital murder.