Carl Wilson, 18, was shot once in the abdomen and twice in the head, according to the Tarrant County Medical Examiner.
Wilson's death has been tough for his classmates, many of whom visited a memorial in his honor on Wednesday.
Sources close to the investigation say that Wilson was at the car wash where he was killed to participate in or possibly end an argument that he walked away from that day in the cafeteria at school – an argument that centered around a girl.
Instead, the fight quickly escalated, and investigators say their suspect pulled out a gun and shot Wilson.
"We've got a lot of Witness statements the investigators are going through trying to piece together exactly what happened at the scene and who was where," said Chief Tommy Williams with the Kennedale Police Department.
Wilson's body ended up in the street a few feet away from his car.
The Tarrant County Medical Examiner says Wilson was shot once in the abdomen and twice in the head.
Detectives, as well as those who knew Wilson, said the athlete was not involved in a gang, they say that at least one person they're looking for does have ties to an Arlington gang -- the driver of a black Lincoln Navigator who was seen leaving the car wash.
Kennedale police found the SUV abandoned in Grand Prairie and are processing it for evidence.
"We want to get our warrant and get in there and look at it for evidence and clues to see if maybe it can lead us to identify who's responsible for this," said Williams.
Students at Wilson's memorial on Wednesday told FOX 4 that the student who had an argument in the cafeteria with Wilson has not been back to school since.