Aurora Fire says Jason Murphy was riding his bike to work at 7:30 a.m. when he was in the accident.
Aurora Police say it happened on East Quincy Avenue near South Uravan Street along Quincy Reservoir.
Police say the driver of a 2002 Dodge Ram pickup, 49-year-old William Nale, hit Murphy as he was using a marked crosswalk to Summit Elementary School. Nale told police he could not see because of the morning sun.
Murphy was taken to a local hospital with serious injuries and passed away.
Police say Nale was cited for careless driving resulting in death and failing to provide proof of insurance.
"This is a devastating loss to Jason's family and the Aurora Fire Department. Firefighter Murphy has been a member of the Aurora Fire Department since February, 2003 and held the rank of Engineer. Our thoughts, our hearts, and our prayers go out to Jason's family. The Aurora Fire Department is grieving the loss of a colleague and a great friend," Capt. Allen Robnett said in a statement.
(KUSA-TV © 2012 Multimedia Holdings Corporation)