NEW RIVER, AZ - Authorities say the Arizona property where a man lost most of a leg in an explosion is the same one where a munitions-maker had an operation in the 1990s.
Initially, Maricopa County Sheriff Joe Arpaio said the man was helping a couple move out of a rented house in the New River area late Monday when he apparently stepped on something that exploded.
The bomb squad from Arpaio's office was checking the property Tuesday. Explosives experts with the Bureau of Alcohol, Tobacco and Firearms were also on scene assisting in the investigation.
MCSO Deputy Joaquin Enriquez said in a Tuesday afternoon news conference that the property has been vacant for the last six months and none of them were supposed to be there.
He identified the man who lost his leg as 49-year-old Steven Scott Lane.
The man and woman who were present at the time were identified as Jordan Perrin and Chelsie Garner.
Enriquez said the property is where state officials removed tons of explosive chemicals in 1999.
That operation took place about two years after federal authorities raided the property which at that time belonged to Charles Byers.
Federal agents discovered a large quantity of explosives , including materials to make grenades and booby traps.
An ATF spokesperson said the agency will lead the federal investigation into Monday night's incident if it is determined that federal explosives laws have been violated.