The report says he was electrocuted while changing a bulb. It does not say that it was the actual changing of the bulb that electrocuted him.
"But something went wrong as the San Francisco resident climbed on top of a *metal enclosure* that holds propane tanks on the outside of the 76 gas station at 101 S. Mayfair Ave., police said. Somehow, as Algazawy changed the florescent light bulbs on the outside of the station, *he came into contact with a 120-volt power source* and was electrocuted, San Mateo County Coroner Robert Foucrault said".