The family of a 17-year-old boy is mourning after he was declared brain-dead following an accident while celebrating the Spurs' Western Conference Finals Game 6 victory, according to his family.

Joey Rodriguez suffered a severe head injury after falling from a vehicle the night of May 28 on Dickson Street near Southwest Military Drive, according to San Antonio police.

Rodriguez's grandmother told KENS 5 that he was declared brain-dead the next day.