Investigators searching for the fugitive wanted in connection with the double homicide of a elderly Massachusetts couple say the vehicle he was last seen driving in has been found abandoned. Christopher Keeley, 27, of Weymouth, remains on the run Thursday after Carl and Vicki Mattson were discovered "stabbed and bludgeoned to death" inside their home in Marshfield on Tuesday night, according to Plymouth County District Attorney Tim Cruz. "The Jeep has been located unoccupied," Massachusetts State Police tweeted, without elaborating on its whereabouts. "We continue to seek Christopher Keeley." Cruz said Wednesday that the Mattsons, both 70, were found dead...