Last Thursday Joe Lawernce Rivera III, 19, was escorted out of J's Bar and Grill and assaulted. Rivera was taken to the hospital where he was treated for severe injuries and subsequently released. Four days later Rivera died due to the injuries.

The Amarillo Police Department's Homicide Unit is asking for anyone who witnessed the incident to call 806-378-9468, Amarillo Crime Stoppers at 806-374-4400.