The Houston Police Department said the victim was found at about 12:30 p.m. in the 1100 block of W. Rankin Road after an argument escalated with several suspects.
Police say the man had just left a convenience store to buy something before he was shot by one of the suspects.
Authorities say the suspects were in a Honda Accord in the parking lot.
HPD said the person shot was taken to the hospital and pronounced dead.
Authorities added two people, who were in the Accord, were detained in connection with the incident.
Police say the suspected shooter fled the scene in a separate vehicle, which was described as a gray Buick sedan. Officials describe the suspect as a Black man with a thin build and medium-length locks.
An investigation into the incident is ongoing.