The shooting happened at an apartment complex off 3950 Hollister Road in northwest Houston before 10 p.m. Friday.
HPD patrol officers were responding to an unrelated call at an apartment complex at the above address when someone flagged them down. The caller reported a group of males, dressed in red shirts, carrying guns and walking around the complex.
As officers searched the area for the group of males, a dispatcher reported a shooting at the same complex.
That's when they discovered a man shot in the upper body. The 20-year-old victim was pronounced deceased on scene. His name hasn't been released.
Commander Johnson with HPD says the victim was arguing with another man, when the suspect then pulled out a gun and chased him prior to the shooting.
Officers detained a "person of interest" after a short foot chase.
Police say a weapon was recovered. The victim was well-known around the apartment complex, according to police.