An argument over a woman ended with a shooting in the 2500 block of Northeast Loop 410, San Antonio police said.
The shooting happened just before 10 p.m. Friday in a parking lot near an apartment complex.
San Antonio police arrived and found the victim on the ground. Officers said he and another man had apparently been dating the same woman.
The shooter fled and remains at-large. San Antonio police said the victim was taken to San Antonio Military Medical Center in critical condition.