Houston police responded to the 4400 block of Idaho Street at Cullen Boulevard around 10:45 p.m. Monday after getting the report of gunshots.
At the scene, officers found a man in his vehicle with a gunshot graze wound to the head.
Video from the scene showed a white SUV with a busted window.
The man was taken to the hospital in stable condition -- where investigators hoped to talk to him and get more information about what happened.
A preliminary investigation found that the man was shot while driving, though it was unclear exactly where he was when he was struck. He rolled to a stop after he realized he was hurt.
Investigators said many shell casings were found at the scene.