Graham Hoffman, 29, was taking a patient to the hospital following a routine medical call from police when he was stabbed in the chest, piercing his heart.

A Kansas City, Missouri, firefighter has died after a patient he was taking to a hospital in an ambulance stabbed him. The incident happened at about 1 a.m. Sunday when crews were dispatched to a “routine medical call," after a woman was seen walking along the westbound lanes of 152 Highway.

A woman is charged with stabbing and killing a Kansas City, Missouri, paramedic firefighter who tried to help her when she was placed in an ambulance early Sunday in the Northland.