On Wednesday, Houston police shared a photo on Twitter of the shooting scene on West Alabama near Post Oak around 4:30 p.m.
Officers told ABC13 an altercation between two groups broke out inside the Galleria mall. Later, one group was walking on the sidewalk when two men drove by.
According to police, someone on the sidewalk opened fire into the car and hit the passenger. The driver left the scene and went to a hospital where his passenger died.
Houston police are searching for the suspects involved. They are investigating the shooting and are looking for surveillance video inside and outside of the mall.