The 55-year-old was making improvised explosive devices in a detached garage at his home in Jefferson Township before the blast Saturday, according to the Ashtabula County Sheriff’s Office.
A neighbor told investigators the man intended the sell the explosives to pay off a lawn mower he bought, officials say.
The garage was burned to the ground and debris was scattered onto a neighbor’s property when deputies arrived at the scene.
Ohio man was taken to a hospital where he died.
ATF is taking part in the investigation.