No, Ville Valo is not a satanist. He has said that he was not baptized at birth and his family is not very religious either. None the less he says that he does not believe in either God or Satan.
(I believe he said this in a recent interview below)
http://www.YouTube.com/watch?v=E57SQl1b1qY
Skip to 2:52 and watch from there.
No, he is NOT!
Skyler Vallo's birth name is Skyler Denenne Vallo.
The population of Vallo Torinese is 743.
Skyler Vallo is 5' 4".
Vallo Allingu was born on 1978-01-11.
Mazara del Vallo's population is 51,359.
Vallo di Nera's population is 419.
The population of Vallo della Lucania is 8,866.
The area of Vallo Torinese is 6,200,000.0 square meters.
"Love Metal" is some term coined by Ville Vallo of HIM - HIM is not a Metal band in any form, nor do they profess to follow any form of Satanic belief.
The area of Mazara del Vallo is 275 square kilometers.
The area of Vallo di Nera is 36 square kilometers.