Firefighter Mark Keller, who started with the East Valley agency in 1990, was found deceased during a May 6 shift, according to the city. A cause of death was not disclosed by the city.

Mark Keller, age 55 of Indian River, passed away early Saturday morning on January 21st at his home. Mark was born May 28th 1967 in Flint Michigan. The son of Charles and Geraldine Keller, ...

According to the department, Keller began his career with Mesa Fire and Rescue in 1990. Keller’s death hit home for Mayor Mark Freeman, a firefighter who worked with him.

The Brief. Mesa firefighter Mark Keller was "found passed away while on duty" according to Mesa Fire and Medical Department officials. Keller was a 35-year veteran of Mesa Fire and Medical.

MESA, AZ (AZFamily) — Hundreds have gathered to honor a Mesa firefighter who passed away earlier this month. The funeral and procession for Mesa firefighter paramedic Mark Keller is being held ...

Mark Keller served with Mesa Fire & Medical for more than three decades. By Ben Bradley. Published: May 6, 2025 at 12:37 PM MST | Updated: May 6, 2025 at 5:03 PM MST MESA, AZ ...

PHOENIX — The funeral services for longtime Mesa firefighter Mark Keller will begin Wednesday evening. Keller, 62, was found dead last week while on duty, according to Mesa Fire and Medical ...

Mark R. Keller, Sr., 72, of Littlestown, PA died Monday morning, February 19, 2024 at his home. Born January 7, 1952 in Reading, PA he was the son of the late Raoul Keller and Betty Jane (Gotchall ...

A 35-year Mesa firefighter died on duty last week, it was announced. Mark Keller, 62, who lived in Gilbert, was found dead the morning of May 6. Details of his death were not released. “My heart ...