17-year-old Karmelo Anthony, who allegedly stabbed Austin Metcalf to death after an argument over seats at a sports event, had a chilling message for cops.

According to an arrest warrant obtained by NBC DFW, he told the police when he was being arrested: “I am not alleged; I did it.”

The affidavit states that the entire incident began when Metcalf told the suspect he needed to move out from under his team’s tent.

Anthony was a student at Centennial High School but was reportedly sitting under Memorial High School’s tent.

A witness told police that Anthony would reach into his bag and open it while warning Metcalf, “Touch me and see what happens,” per WFAA.

Not heeding the warning, Austin Metcalf reportedly then touched Karmelo Anthony, which prompted the Centennial High School student to tell told Metcalf to punch him and see what would happen.

Soon afterward, the witness said, Metcalf grabbed Anthony to tell him to move from the area.

At that point, Karmelo Anthony pulled out what the witness recalled as a black knife and stabbed Metcalf once in the chest before running away.

Metcalf is said to have grabbed his chest while telling others to get help.

What Happened When Cops Found Karmelo Anthony

The arresting officer says that when he found the 17-year-old, he immediately told the officer, “I was protecting myself,” before the officer could even question him about anything.

He was not denying what he had done. However, he had no clue that Metcalf was either dying or already dead.

Karmelo also allegedly said that the Metcalf had “put his hands on [him].”

In the process of being handcuffed, Karmelo Anthony was listening to the cop state over his radio that he had the alleged offender in custody.

That is the moment Anthony reportedly said, “I’m not alleged, I did it.”

It was also revealed that Anthony also reportedly asked the officer if Metcalf was going to be OK while he was in the back seat of the vehicle.