Updated at 10:40 a.m. Thursday: Revised to include second arrest.

Ledajrick Rajae Cox (Facebook)

A second suspect has been arrested in a drive-by shooting that killed a Carter High School football player and prom king hours after his graduation.

Courtney Wright, 26, was booked on a murder charge Wednesday, one day after the arrest of 17-year-old Jeremiah Robinson, the alleged shooter, on the same charge. Both men are being held in the Irving Jail.

Ledajrick “LD” Rajae Cox, 18, was killed in the shooting near an Irving convenience store early Sunday. Two other victims were wounded. Numerous tips led police to the suspects.

Police have identified another passenger in the car but have not decided whether to charge him.

Wright has a lengthy rap sheet in Dallas County that includes convictions for assault, vehicular burglary, evading arrest and drug possession.

Courtney Wright

He was arrested in late April on a charge of unlawful possession of a firearm by a felon after he was found with a shotgun, court records say. He posted bond and was released from the Dallas County jail on May 11, just two weeks before Cox's slaying in Irving.

Cox graduated Saturday from Carter High School, where he ran track and was a wide receiver on the football team. He had signed in February with Navarro College in Corsicana.

The shooting happened about 1:40 a.m. Sunday in the 3300 block of West Walnut Hill Lane near Belt Line Road.

Jeremiah Robinson

Cox was with friends at a 7-Eleven when an argument broke out after Wright made comments to a woman in Cox's group.

Cox later went to the car Wright was in and shook the occupants' hands, appearing to have resolved the argument. But after he and his friends left, the car followed. It pulled alongside Cox's car and Robinson fired multiple shots before fleeing, a witness told police.

Just minutes after Cox was shot, his girlfriend, Alexis “Lexo” Adams, sent him a text message.

“Where you at?” she messaged him at 1:57 a.m. before falling asleep at a friend’s house.

In addition to being active in athletics, Cox was also named homecoming king and prom king, KDFW-TV (Channel 4) reported.

"Everybody loved him because he always uplifted people and was happy. He didn't do well with sadness," said Adams, 18, who graduated from DeSoto High School on Tuesday. "I keep waiting for him to call me and say it was all a joke.”

From my 1st little league football game to my Last HS football game... give me 4 more years mama, ima pay you back! I promise.... 👸🏽💖 pic.twitter.com/1FwYsQui2O — LD Cox (@TheLdCox) May 4, 2017

Cox's family and friends took to social media to express their disbelief and share memories.

Corlandrion Dorsey posted a photo on Facebook of Cox in a red cap and gown at his graduation less than 24 hours before he was killed.

"Family I'm asking for your prayers right now for our family. My little cousin graduated from Carter High school yesterday and last night he was killed," he said. "Words can not express the heart ache and pain I'm in right now. I've watched him grow from a little boy following me to a grown man leading others."

Hundreds turned out Monday night for a candlelight vigil for Cox at Carter High. They brought candles, red balloons and memories of the slain student who was loved at the school and in the community.

Last year, Cox presented a classmate with a pair of Nike Jordans in the cafeteria. Joshua Reese had been bullied for having only one pair of worn-out shoes.

"He really saved my life. He knew everything I had going on, he knew I was poor, he knew I didn't have a dime, he knew I didn't have anything," Reese told KDFW.

"I cried because nobody has ever done that for me before," he said.

Cox's father told the station that his son was always sticking up for others.

"He just wanted to do the right thing, wanted to achieve, just tried so hard," Reginald Henry said. "I was real proud of him."

Dude Was Getting Picked On Cause He Had 1 Pair Of Shoes So I Gave Him Some 💯https://t.co/YE7gw1RPT4 — LD Cox (@TheLdCox) December 22, 2016

Alexis "Lexo" Adams and her boyfriend, Ledajrick "LD" Cox, who died in a drive-by shooting Sunday in Irving. ((Courtesy of Alexis Adams))

Adams said Cox was her first boyfriend.

“He was weird," she said, "and that’s what I liked about him because I was weird, too."

Cox told Adams his plan was to make it to the NFL — and to make her his wife. They talked about having a big house and he told her he wanted five kids, even though she said she didn’t want any.

She said she's been sleeping in his jacket and often wakes up crying.

“He meant a lot to people, and they just took him away from everybody including me,” Adams said. “I told him I don't see myself with anybody else but you. I’m his girl, and I will forever be his girl and I will forever love him.”

Staff writer Naheed Rajwani contributed to this report.

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