Texas track meet stabbing suspect told responding officer he 'did it': docs

The 17-year-old fishy accused of stabbing different teen to decease astatine a Texas precocious schoolhouse way conscionable allegedly confessed to a constabulary serviceman soon aft the deadly attack.

Authorities person charged Karmelo Anthony, a student-athlete from Frisco Centennial High School, with execution aft helium allegedly stabbed 17-year-old Austin Metcalf, a inferior astatine Memorial High School successful Frisco, to decease connected Wednesday greeting implicit a seating dispute.

A schoolhouse assets serviceman was the archetypal to get astatine the country and comfortableness Anthony, according to an apprehension study obtained by FOX 4 Dallas-Fort Worth.

"I gave the fishy instructions to support his hands up successful the air. During this time, the fishy said verbally retired loud, ‘I was protecting myself,’" the study from the responding assets serviceman states.

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Karmelo Anthony, 17, was arrested and charged with first-degree execution successful transportation with the stabbing decease of 17-year-old Austin Metcalf. (FOX DFW)

The fishy besides allegedly told the serviceman that Metcalf "put his hands on" him.

When the serviceman told immoderate others that helium had the alleged stabbing fishy successful custody, Anthony seemingly said, "I'm not alleged. I did it," according to the apprehension study obtained by FOX 4.

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High schoolhouse inferior Austin Metcalf, 17, was killed during an altercation astatine a way conscionable successful Frisco, Texas. (Jeff Metcalf)

"He enactment his hands connected me. I told him not to," Anthony allegedly said arsenic authorities walked the teen to a constabulary vehicle.

Anthony besides asked the officers if Metcalf was "going to beryllium okay" and asked if what happened could beryllium considered "self-defense," FOX 4 reported, citing the constabulary document.

File photograph of Jeff Metcalf with his son, Austin Metcalf, who was stabbed successful the thorax allegedly by 17-year-old Karmelo Anthony astatine a Texas way meet. (Courtesy Jeff Metcalf)

Metcalf's duplicate brother, Hunter, who spoke connected "The Will Cain Show" Wednesday alongside his grieving mother, Meghan, recalled the infinitesimal helium saw his member with a coiled to his thorax aft the altercation with Anthony.

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"I whipped my caput around, and past each of a abrupt I spot him moving down the bleachers conscionable grabbing his chest… I enactment my manus connected there, tried to marque [the bleeding] stop, and I grabbed his caput and I looked successful his eyes. I conscionable saw his psyche leave, and it took my soul, too," Hunter said.

Anthony is being held successful a Collin County jailhouse connected $1 cardinal bail.

Fox News' Madeliene Coggins contributed to this report.