Officials said the charges arose in connection with the alleged sexual assault of a male student at Framingham's Saint Bridget's School on two occasions when the boy was between the ages of 11 and 13.
Investigators who confiscated and processed the chainsaw said they could smell decomposition on it, in addition to seeing the pieces of flesh and torn ligaments on the blade.
Amber Waterman created a fake profile on Facebook and lured the victim, Ashley Bush, under the pretext of getting her a job in an attempt to steal her unborn baby.