That's one rumor that can be put to rest!
But the official records don't reflect that.
The Sheriff's Arson/Explosives Unit reports don't detail anything like a crack pipe being found in the burned debris.
Also, there wasn't any sign of arson, so it seems like her candle theory is true.
Ashley doesn't strike us as a crackhead, so we can't say we're too surprised to find out about this.