IRVING (CBSDFW.COM) – Tips helped police in Irving identify and locate the suspects they say were involved in the death of a Dallas teenager, gunned down hours after graduating from high school.

Seventeen-year-old Jeremiah Robinson has been arrested and charged with the murder of Ledajrick Rajae “L.D.” Cox.

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Just hours after graduating from Carter High School in Dallas, Cox and several of his friends were celebrating and stopped at a 7-Eleven convenience store in Irving just before 2:00 a.m. Sunday. It was there that Cox and his friends got into an argument with a group in another vehicle.

LD Cox (Credit: Family members)

According to the arrest affidavit, one of the people in the vehicle with Cox was a female teenager. When the young lady went to pay for gasoline inside the convenience store the driver in the 2nd vehicle started making comments to and about her.

The female teenager told police that at some point Cox went over the people in the 2nd vehicle and “appeared to have the issue resolved and they shook hands.”

Police said after the group from Carter High drove away, the suspect vehicle followed, pulled beside it and fired several shots. In all, three people in the car were shot. Cox was taken to Parkland Hospital but died from his injuries several hours later.

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Cox, who had been named prom king and homecoming king at Carter, was on track to pursue a degree and play football at Navarro College in Corsicana in the fall. The arrest for his murder comes less than 24 hours after hundreds attended a candlelight vigil for the teen. Emotions ranged from sadness, to anger, to fear as dozens spoke about the 18-year who lived his life with purpose and how he didn’t deserve to die in such a senseless way.

Irving investigators said the release of surveillance video resulted in their receiving several tips about the shooting, including information from Davonte Wright — who was later identified as one of the people in the 2nd vehicle.

Wright told investigators that his cousin was the driver of the 2nd car and that he didn’t know why he drove and pursued the vehicle Cox was riding in or that Robinson had a gun. He said when his cousin drove alongside the car Robinson rolled down the window, leaned out and started shooting.

As of Tuesday morning, only Robinson had been arrested. He is being held in the Irving Jail and is charged with Murder.

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Police say the motive for the shooting is still unclear, but that their investigation is “continuing.”