articleThe Brief Denton High Broncos football player Tro’mario Allen Jr. died unexpectedly over the weekend. The 18-year-old was a senior at Denton High School. Denton ISD is mourning the sudden death of a high school football player and track star. What we know:Tro’mario Allen Jr. was a senior at Denton High School. The Denton County Medical Examiner's Office lists the manner and cause of death as pending.