Luis Carlos Flores, 42, of Galena Park, Texas, was found dead inside a submerged car in Hunting Bayou on April 28, 2018 after neighbors reported a foul odor. Authorities determined Flores had been shot in the head and chest.

Investigators say Flores met a 21-year-old acquaintance, Isaac Sims, to sell a pair of pistols; Sims was arrested and charged after the car was pushed into the bayou. Sims’ DNA was reportedly found on the gearshift and on Flores’ back pocket, and witnesses later said Sims admitted to the killing.

The Harris County District Attorney’s Office described the shooting as pointless and unwarranted, and Flores’ family continues to grieve his loss.

If anyone knew Flores, his movements that day, or has information about the meeting with the seller, please come forward.