METHUEN - The Lawrence Marine who fired a shotgun into a crowd of noisy clubgoers in Lawrence last year wants to buy the shuttered Our Lady of Mount Carmel Church on Union Street. Daniel Cotnoir, a mortician, would turn the three-building campus - a church, school and convent - into a funeral home, he said. Cotnoir, 34, lives above his business, the Racicot Funeral Home at 256 Broadway in Lawrence. He wants to sell the building and leave Lawrence, calling the city unsafe. "Considering the fact that the Police Department cannot or will not protect my family, as soon as...