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.

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.

Keller has served with MFMD for 35 years, beginning in 1990. “I am deeply saddened by the passing of Firefighter Paramedic Mark Keller. As a retired Mesa Fire Captain Paramedic, Mark and I ...

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 ...

The Kenmore Mercy Foundation board of trustees recently elected Mark Keller as the new president. Keller is vice president of operations at Keller Technology Corporation, and joined the board in 2011.

MARK D. KELLER Bloomington, Indiana Age 48 of Bloomington, IN, formerly of Lake of Four Seasons, passed away Sunday, April 6, 2008. He is survived by his wife of 25 years, Lisa (nee Bryant); two da… ...

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 ...