Pima County is investigating the death of a county worker who was killed Friday when he fell off a ladder.
John Andrews, 48, worked for the county for a little less than two years. He was an electronics technician, responsible for systems like fire alarms and public address and camera systems.
He was atop an 8-foot ladder at the new Dr. Herbert K. Abrams Public Health Center, 3950 S. Country Club Road, working on a fire door that was connected to a fire alarm, when he fell and struck his head around 1 p.m. Friday. He was taken to University Medical Center, where he was pronounced dead.
Facilities Management Director Mike Tuinstra said the county still is investigating, but it appears electricity was not a factor in the death. The Occupational Health and Safety Administration and county risk manager also are investigating, as they do all workplace injuries.

