Police say a 39-year-old assistant football coach at Northern Arizona University who died Saturday had suffered from pre-existing health conditions.
But Phoenix police spokesman Trent Crump says Sunday that police department policy prohibits him from releasing details of Jeff Lewis's medical history.
Foul play isn't suspected in Lewis' death.
Authorities say they received a call Saturday morning that Lewis had stopped breathing.
He was later pronounced dead.
Crump says the case is now being handled by the medical examiner's office.
Before becoming a coach, Lewis was a Lumberjacks quarterback who played for Denver and Carolina in the NFL.
Lewis was Northern Arizona's wide receivers coach.
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