The benches inside the Collin County Courthouse were completely packed on June 9, 2026. Kayla Hayes walked slowly toward the witness stand. She did not look at the gallery. She looked only at the rows of jurors who held the life of her firstborn son in their hands.
Her voice shook as she started to speak to the quiet room. She told them that nineteen-year-old Karmelo Anthony would always be her baby. She told them that she loved him very much.
She told them that her son was deeply sorry for the blood on the bleachers.
🚨 BREAKING: Karmelo Anthony’s mom begs jury to have mercy, says her son is sorry. https://t.co/B2RKN2q5zm pic.twitter.com/kYoo2IlxAX
— TMZ (@TMZ) June 9, 2026
Then her defense attorney asked if she had any final things to say. She looked at the twelve strangers who just found her son guilty of murder. She did not hesitate.
“Please have mercy on my son.”
The heavy words hung over a courtroom that was already broken from a year of anger. The tragic story started fourteen months earlier on a rainy afternoon at Kuykendall Stadium. More than a hundred high school athletes were gathering for the district track meet.
A sudden downpour sent students running for cover under the team tents. Karmelo was a student from Centennial High School. He walked into the tent reserved for Memorial High School athletes to get out of the cold rain.
He sat down in the wrong space and refused to move. A junior named Austin Metcalf told him he needed to leave the tent. The tiny argument escalated in seconds under the canvas roof.
Witnesses said Karmelo opened his backpack and dared anyone to touch him. He warned the other boys that he had something hidden inside his bag. He kept his hand tucked inside the dark fabric while the crowd watched.
Austin eventually stepped forward and shoved Karmelo on the shoulders. Karmelo stood up instantly and plunged a black knife deep into Austin’s chest. The entire altercation lasted less than thirty seconds before Karmelo fled into the bleachers.
The metal stands became a scene of absolute horror. Austin’s twin brother Hunter ran down the steps and desperately placed his hands over the wound to stop the bleeding. He held his brother’s head and watched the light leave his eyes.
Coaches and athletic trainers rushed into the tent to perform CPR on the wet ground. The ambulance arrived quickly but it was too late. Austin was pronounced dead at the hospital at 10:53 a.m.
Police found Karmelo walking near the stadium minutes later with blood on his left middle finger. He raised his hands and immediately told officers that he did it. He asked the police if the stabbing counted as self-defense.
The long trial finally came down to a tense Tuesday morning. The defense argued that Karmelo was trapped and acting out of sudden passion. The prosecution argued that you cannot meet a simple shoulder shove with a deadly knife strike.
The jury deliberated for less than three hours before returning with a guilty verdict. Kayla wept quietly in the gallery as her son sat with no expression. Then the court moved straight into the emotional sentencing phase.
Hunter stood at the podium and forced the killer to look him in the eyes. He told Karmelo that he took his best friend and the future godfather of his children. He said he wanted everything taken from Karmelo in return.
The jury walked back into the courtroom at 7:30 p.m. with their final decision. They rejected the claim of sudden passion and sentenced the nineteen year old to thirty five years in state prison.
Karmelo began sobbing uncontrollably as his defense team tried to comfort him. He turned toward his crying parents and mouthed two final words before the guards led him away in handcuffs.
“I’m sorry.”
