The teenager, 15, who shot Washington Commanders' Brian Robinson has pleaded guilty to armed robbery of the running back and manslaughter in the killing of another 15-year-old boy.

The shooter, whose name has not been released, said he was trying to rob Robinson of his Dodge Charger SRT Hellcat in August and that "it went wrong."

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Brian Robinson watches a preseason game

Brian Robinson #8 of the Washington Commanders looks on after the preseason game against the Carolina Panthers at FedExField on August 13, 2022 in Landover, Maryland. (Scott Taetsch/Getty Images)

"I was trying to rob a man for a Hellcat, and it went wrong. I wasn't thinking," the teen told police, according to prosecutors.

Robinson was shot in the knee and hip on Aug. 28 after wrestling with another boy, who was 16 at the time. He was taken to a nearby hospital for treatment of non-life-threatening injuries and was released from the hospital one day after the shooting.

The running back missed four games, making his NFL debut in Week 5 against the Tennessee Titans.

Brian Robinson warms up

Washington Commanders running back Brian Robinson Jr., gestures as he warms up before an NFL football game against the Tennessee Titans, Sunday, Oct. 9, 2022, in Landover, Md. (AP Photo/Jess Rapfogel)

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The shooter was then involved in the shooting death of Andre Robertson in October in northeast D.C.

The boy was 14 when both crimes took place. He remains in a youth rehab service, and his sentencing is scheduled for March 8.

Brian Robinson Jr. catches a pass

Brian Robinson #8 of the Washington Commanders catches a pass against the Carolina Panthers during the first half of the preseason game at FedExField on August 13, 2022 in Landover, Maryland. (Scott Taetsch/Getty Images)

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In his 12 games, Robinson ran for 797 yards on 205 carries while making nine catches for 60 yards. He scored three total touchdowns — two on the ground and one receiving. He was a third-round pick out of Alabama.