Elizabeth Barraza was 29 and setting up a garage sale outside her Tomball, Texas home when she was shot to death just before 7 a.m. on January 25, 2019. Surveillance footage captured an unknown assailant approaching her, firing multiple times, and fleeing in a dark-colored Nissan Frontier pickup truck. Her husband Sergio Barraza was not home at the time but later viewed the video.

The Harris County Sheriff’s Office has treated the killing as a planned murder and says the investigation has used Google search maps, phone records and surveillance footage. Despite numerous tips—reported to have come from around the world—and a $50,000 reward, no arrest has been announced. The family created a WhoKilledLizBarraza website and a memorial bench was dedicated in Burroughs Park in Tomball to keep attention on the case.

What information might help identify the truck or the person seen on the surveillance footage?