MONTREAL - A website that revels in pain, blood, death and darkness is the common link between several homicides, rapes, a church arson and now the Dawson College rampage. Gunman Kimveer Gill blogged at VampireFreaks.com, a popular online refuge where the Goth sub-culture shares morbid poetry, death metal music, details of violent sex and black musings rooted in social alienation and personal despair. Gill, 25, referred to himself in one seething online post as ''the Angel of Death.'' On Wednesday, armed with an assault rifle, he went on a murderous rampage at Dawson College in Montreal, killing one woman and...