Certain black magic rituals by modern (i.e. non-pagan) witches do use candles ON human skulls . . . but that's not pagan. Most Satanist practice is merely sick parodies of Christian ritual, and it's been invented recently. And it's bad, but it has nothing to do with Hallowe'en.
The citations to the article are from religious publishers like Harvest House and Koinonia House, NOT serious historical sources.
I repeat, the Oxford History of England series has all the actual, verifiable sources pulled together for you. And The Customs and Ceremonies of Britain points out how you can't trust the mere assertion that something has pagan origins.
Try again.
Correct. But I think most "Satanists" are silly people just rebelling against the establishment.