Champagne, who was already convicted of second-degree murder and served his prison sentence for that crime, has been in jail since last year on attempted murder charges for allegedly shooting at cops.
Since then, his mother's Phoenix home went into foreclosure, and was sold. The new owner was having landscaping work done earlier this month, and discovered a homemade coffin, containing the bodies of Tapaha and Hoffner, which had been buried there for about two years.
According to new court documents in the case obtained by New Times, police have discovered since Champagne's arrest that Tapaha was killed by a gunshot to the head, while Hoffner was strangled by an extension cord -- which was still wrapped around her neck when her bodies was unearthed a few weeks ago.
Police had always suspected Champagne, but a very clueless maintenance man -- who also helped Champagne build the coffin (which he didn't know was a coffin) -- accidentally helped clean up the murder scene, Champagne's former apartment.