Ah, Sibling rivalry.
In the vein of the Menendez brothers, the "parents of destruction" were killed by their own offspring when The Undertaker burned down the family funeral home, which also happened to disfigure his brother Kane's face.
Fortunately the scars cleared up in time for his eventual unmasking.
Anyway, on the April 6, 1998 episode of World Wrestling Federation's (WWF) Monday Night RAW, Paul Bearer and Kane helped advance the Taker-Kane angle (Inferno match at Unforgiven) by heading out to the cemetery where the parents were buried, where "The Big Red Machine" proceeded to smash the tombstones of his parents with a sledgehammer.
Trips woulda been proud.
As Undertaker watched on in disbelief, Kane them dumped some sort of fuel all around the grave site and lit it on fire, as Paulie B. yammered on with that hideous stage voice.
See it all down (and up) after the jump.
Any burning questions after watching that video?