PHOENIX — The funeral services for longtime Mesa firefighter Mark Keller will begin Wednesday evening. Keller, 62, was found ...

The Mesa Fire Department is mourning the loss of Firefighter Mark Keller. Officials say Keller died Tuesday morning while on ...

A 35-year Mesa firefighter died on duty last week, it was announced. Mark Keller, 62, who lived in Gilbert, was found dead ...

The funeral and procession for Mesa firefighter paramedic Mark Keller was held in the East Valley on Thursday morning.

Watch the full procession for Mesa Firefighter Paramedic Mark Keller, who died while on duty last week. The procession will ...

PHOENIX — The Mesa Fire and Medical Department is in mourning after the death of longtime firefighter Mark Keller. Keller was ...

A 35-year Mesa firefighter died on duty last week, it was announced. Mark Keller, 62, who lived in Gilbert, was found dead ...

Family, friends and fellow firefighters gather to honor and say goodbye to Mesa firefighter Mark Keller. Poison hemlock has ...

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.

Mesa Fire and Medical Department identified the firefighter who passed away as Mark Keller, who has been with the department for decades.