A triple homicide was committed in Waltham, Massachusetts, in the United States, on or very near to the evening of September 11, 2011. Brendan Mess, Erik Weissman, and Raphael Teken were murdered in Mess's apartment. All had their throats slit with such great force that they were nearly decapitated. Thousands of dollars' worth of marijuana and money were left covering their mutilated bodies; in all, $5,000 was left in the apartment. The local district attorney said that it appeared that the killer and the victims knew each other, and that the murders were not random.