A 15-year-old boy was shot Friday morning in an apartment near the Medical Center, San Antonio police said.
A 17-year-old boy is in custody.
The shooting happened at an apartment in the 5900 block of Eckhert Road.
Police said two friends were inside a bedroom of an apartment when family members heard the shot.
They ran into the room and found one teen had been shot and the other was missing.
The suspect returned a short time later and surrendered to police. He was taken into custody for questioning.
Police said they did recover a weapon while on scene.
The teen who was shot was taken to the hospital with life-threatening injuries.