The Manchester mom found dead with her 2-year-old son two weeks ago had a history of domestic-abuse incidents with her mother and had been reported to state officials for the way she treated her son, according to police reports and court documents. Mercedes Lee Tremblay, 25, was going through a difficult time and has âa variety of mental/emotional issues,â her motherâs boyfriend, Pierre Brendan, told police in May, about a week after Tremblay reportedly assaulted him and her mother, Rhonda Wilkens-Hickey, according to police reports. Both Wilkens-Hickey, 54, and Brendan told police they did not want to press charges following the blow-up, when Tremblay hit Brendan repeatedly and punched her mother in the face with her son nearby, according to police documents.