ms-13. 6,000 members, active in almost every state, and is growing rapidly. just yesterday they were suspected in a horrific quadruple murder on long island, new york. tim clemente specialized in international counter narcotics and counter terrorism operation and he joins us on the set. thanks a lot. thanks for having me. this is a threat that has received weirdly little publicity but a lot of people have died as a result of ms-13 activity. give us a sense of the scope of this organization. it began primarily first as a stoner gang and wasn t involved in drug distribution, then it became very violent because their founders came from the rebellion in el salvador. they were part of the peasant guerilla fighters. they brought that warfare to los angeles and it s since spread