Gilliam’s mother Tuseda Graggs-Borden, who is based in San Francisco, believes her son’s life was saved by a nurse who just happened to be passing the dance studio at the time of his collapse. According to news reports, when the nurse saw Gilliam’s panicked friends, she stepped up to assist them, performed CPR on him and assisted paramedics as they rushed Gilliam to the hospital. The identity of the nurse remains a mystery.

Gilliam has been sustained ever since by an extracorporeal membrane oxygenation (ECMO) machine that acts as an artificial heart and lung. He is under heavy sedation.

A GoFundMe campaign to help cover Gilliam’s considerable medical and family expenses has been set up by his aunt, Perginia Shank. So far, almost 4,000 donors have stepped up, raising more than $250,000 of a $500,000 goal.