According to the Harris County Sheriff's Office, deputies responded to a report of a fight with shots fired in the 24800 block of Dutton Point at midnight.
At the scene, deputies said they found 42-year-old Darius Phillips dead with gunshot wounds.
HCSO detectives said a party was underway when a large fight broke out among several individuals, including Phillips and the shooter.
During the fight, the suspect, described as a man in his 40s, grabbed a gun and shot the victim before firing at the other party guests, deputies said.
Deputies said he then fled the scene and was gone before they arrived.
Detectives are working to identify the suspected gunman.
Anyone with information about the incident is asked to contact the Harris County Sheriff's Office Homicide Unit at 713-274-9100 or Crime Stoppers of Houston at 713-222-TIPS (8477).