A mother and her son were shot and killed by her boyfriend at a Massachusetts home, where officers found the suspect with a gun believed to be the murder weapon, according to police. Arlington Cole, 54, has been charged with two counts of murder and one count of unlawful possession of a firearm in the deaths of Nicholas Almeida, 25, and his mother, Elizabeth Almeida, 54, the Bristol County District Attorney's Office said in a news release issued Sunday, February 1.