Did Undertaker burn down his parent's house?

Theyre parents died in a house fire when Kane & The Undertaker were kids: Kane found a box of matches and he started playing with it and the undertaker blames himself because he says he shouldve known better than letting Kane playing with the box of matches They also found oil, which helped cause the fire. i dont think they really did

Its not real its part of the storyline between undertaker and kane's relationship