The mother of the 14-year-old suspect in a Georgia high school shooting has a lengthy criminal record dating back over two decades in four counties. Marcee Gray has faced prosecution on allegations of domestic violence, drug possession, property damage and traffic violations in Barrow, Fulton and Forsyth counties, and also faced civil fraud charges related to a vehicle purchase, reported the Atlanta Journal-Constitution. Her son, 14-year-old Colt Gray, is expected to be charged as an adult with murder in the deaths of two 14-year-old classmates and two teachers at Apalachee High School in Wind…