The teenager who confessed to high school student Austin Metcalf during a scuffle at a track meet told police it was in self defense. “I’m not alleged, I did it,” said the 17-year-old, who – contrary to witness testimonials – insists he was “protecting” himself when he buried a knife into the heart of a fellow athlete.

On April 2, about 10 a.m., Hunter Metcalf was with his twin brother Austin Metcalf, a star athlete who was competing in discus throw and shot-put events at a track meet, held at the David Kuykendall Stadium in Frisco, Texas.

“We did everything together. You name anything in the world, it’s always us two. We were always basically one person,” Hunter said of him and Austin, who was born four minutes before his twin brother.

The 17-year-olds – both juniors at Memorial High School outside Dallas – were in the school’s tent at the championship competition when a student – identified as Karmelo Anthony – from another school decided to enter.

“This kid was sitting under out tent at track, we asked him to move. He started getting aggressive and talking reckless and my brother stepped in and said, ‘you need to move,’” Hunter told ABC affiliate WFAA in a heartbreaking interview. “And he’s like, ‘Make me move.’

‘I tried to help him’
Then Karmelo allegedly reached into his backpack and pulled out a knife, stabbing the twin once in the chest before running away.

“I tried to whip around as fast as I could. I didn’t see the stab…but then I looked at my brother… and I’m not going to talk about the rest. I tried to help him,” a teary-eyed Hunter said, adding that tried to save his brother’s life by stopping the blood.

“I tried to help him.”

He held his twin until first responders arrived and attempted resuscitation.

“They yanked me off him,” Hunter said of not wanting to let go of his brother.