Hull, was with at least 10 other police who were conducting surveillance on a group of people suspected in a series of robberies around Fort Worth, Sgt. Chris Britt said.
The officers confronted the three male suspects who fled on foot after unsuccessfully trying to get into a vehicle.
At least one of the three fired at police, striking Hull in the head. The officers returned fired, fatally shooting the gunman, who was later identified as Dacion Steptoe. The two other suspects tried to flee but were captured, police told the
Dallas News
.
Hull, who has a wife and two daughters, was part of a task force made up of uniformed and plainclothes officers, Fitzgerald said.
The suspects in Friday's robbery were believed to be responsible for at least 15 robberies in Fort Worth and some in other cities, Fort Worth PD said.