Posted Wednesday, April 11, 2012 --- 10:55 a.m.

MILWAUKEE (AP) -- Milwaukee officials say they don't suspect foul play in a fire that killed a 37-year-old man.

The Milwaukee County Medical Examiner's office identified him on Wednesday as Glenn Walker.

The medical examiner's report said firefighters found Walker in a home's basement after a fire at about 8 a.m. Tuesday. He had been listening to a car radio that was connected to a car battery, which connected to a charger. Preliminary investigation indicates the charger failed and caught fire.

The cause of death was determined to be from "inhalation of soot and products of combustion."

Most of the fire damage was in the basement, with smoke damage to the first and second floors. The report says Walker lived with his sister and her family who were out of state.

Copyright 2012. The Associated Press.