A Missouri paramedic was killed Sunday when he was stabbed in the chest by a patient in his ambulance. Graham Hoffman, 29, transporting a patient following a routine medical call from police when he was attacked, Kansas City officials said. Numerous callers reported a woman walking along the shoulder of a highway around 12:30 a.m. on Sunday.

Early Sunday morning, firefighter Graham Hoffman, 29, was in the back of an ambulance transporting a patient to the hospital in Kansas City, Missouri, when he was stabbed in the chest, piercing his heart, according to a press release published on the city's website.

Shanetta Bossell, 38, who is charged in the stabbing death of Kansas City Fire Medic Graham Hoffman, was in jail last week for allegedly biting a police officer.