Graham Hoffman, 29, was “critically injured after being stabbed in the chest, piercing his heart,” while taking a patient to the hospital on what began as a routine medical call from

Graham Hoffman, 29, was identified as the firefighter-paramedic in the ambulance who was stabbed in the chest by a patient early Sunday.

The Fire Department is mourning the loss of one of its own. Firefighter-paramedic Graham Hoffman, 29, died Sunday after being stabbed by a patient he was assisting during a medical call, according to department leaders.