Hours after taking a coaching interview with the New York Knicks, recent Sixers assistant coach Sean Rooks collapsed and passed away at a Philadelphia restaurant, according to Adrian Wojnarowski.

Rooks played 12 years in the NBA before joining the Sixers as a coach in 2014, where he focused on player development and did extra work with big men Nerlens Noel, Jahlil Okafor, and Joel Embiid. Rook’s mother, Deborah Brown, said in a statement:

It is with deep sadness and overwhelming grief that we mourn the sudden loss of my son, Sean. Our family asks that our privacy be respected as we grieve during this incredibly difficult time.

Rooks was 46 years old.