HPD: Man was assaulting girlfriend before witness shot him at north Houston apartment complex

Houston police officers investigate a shooting Monday that left one man in serious condition. One possible suspect is in custody. Houston police officers investigate a shooting Monday that left one man in serious condition. One possible suspect is in custody. Photo: Metro Video Photo: Metro Video Image 1 of / 6 Caption Close HPD: Man was assaulting girlfriend before witness shot him at north Houston apartment complex 1 / 6 Back to Gallery

A possible suspect is in custody after a shooting Monday morning at a north Houston apartment complex in the 2800 block of Northborough, according to a tweet from Houston police.

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One man was taken to the hospital in stable condition, police say.

Witnesses said the victim was assaulting his girlfriend when another man "took offense" to it, according to Houston police Lt. Larry Crowson.

The onlooker confronted the man, and one of them pulled out a gun. Crowson said he wasn't sure which man pulled the gun, but the victim was shot at least one time.

The man who fired the weapon is in custody. Police are trying to see whether he was defending himself during the confrontation, Crowson said.