JACKMAN (AP) – A Jackman man was killed when decades-old blasting caps stored in his workshop exploded, law enforcement authorities said.

Glenn David Bouffard suffered multiple injuries Monday night and was was pronounced dead at the Jackman Medical Center, according to the state fire marshal’s office.

Bouffard, 55, was either welding or grinding metal on farm tractor parts when the blasting caps stored on his workbench exploded, blowing out the windows of the workshop next to his home on Main Street, investigators said.

His wife and two sons were at home at the time of the explosion and ran to Bouffard’s aid. They were not injured.

Bouffard had 200 blasting caps stored on his workbench. The caps were more than 40 years old, investigators said.

The fire marshal’s office cautions that old blasting caps, dynamite and fireworks can be unstable and dangerous. The fire marshal’s office will assist in properly displosing of old explosives, officials said.

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