State Troopers and Local Police across the Commonwealth are hunting for the prime suspect who they say murdered Carl and Vicki Mattson in their home in Marshfield Tuesday. Authorities have identified 27-year-old Christopher Keeley as their prime suspect and are calling him “armed and dangerous.”
Plymouth County District Attorney Tim Cruz said that investigators put out an alert to be on the lookout for Keeley, who was known the couple. Cruz went on to say, “This appears to be a targeted attack against these two individuals, the individual that we are looking for right now, we consider him armed and dangerous.”
Officers were called to the home of the couple on Gotham Hill Drive at 9:19 p.m. Tuesday for a well-being check where they subsequently located the two victims. They were pronounced dead at the scene. Cruz said both were stabbed and bludgeoned to death. Vicki Mattson would have turned 71 Wednesday, Carl Mattson was 70 years old.
According to court documents, the victims were found just inside their Gotham Drive home with evidence of a struggle including an overturned bookcase. The couple was likely attacked last week, and it was a friend of Keeley’s who asked police to do a check on the home telling them Keeley had been living with the couple as a favor to a family member, but had recently been asked to leave.
The documents say Keeley told a friend it was an argument over a barking dog that led to the attack, and that Keeley had been recently acting “psychotic” and told the friend he was feeling an urge to hurt people, including the couple he lived with, and was known to carry knives.
According to the documents, Keeley was angry and fearful he would end up homeless after a woman who had considered letting Keeley stay with her in Weymouth threw him out.