The attack claimed the life of Austin Metcalf, 17, of Frisco. The victim’s father, said that his son was stabbed in the heart and died in his twin brother’s arms.

Austin Metcalf was a 17-year-old high school student in Frisco, Texas, who was stabbed to death by another student at a track meet, according to Frisco police. Frisco police wrote in a news release that the suspect accused in the homicide is a Frisco Centennial High School student named Karmelo