We had that happen to a home in a town I used to live in. It was due to a faulty furnace a local contractor had supplied. (Natural Gas) Two people died when a portion of the house blew up.
The owner of the business killed himself due to guilt over it happening.
A really sad story all around. :(
terrible
I saw A story like that on a real life crime show. A very frugal landlord replaced a furnace but did not want to pay for the installation so he did it himself. He did something backwards so the thing blew up killing a young couple. Terrible.