The M-19 essentially ceased to exist in 1990.  M-19, under intense pressure from the Colombian government's security forces, as well as right-leaning paramilitary groups, agreed to a ceasefire and shortly after laid down its arms permanently to become the Colombian political party, Democratic Alliance M-19.  Predictably, some members rejected the cease fire, formed new terrorist groups, and continue to wreak violence and death throughout Colombia.

Arab Commando Cells was the name of a Libyan government-sponsored terrorist cell that committed one attack in 1986.<br /><p><br />In December 1984, American University in Beirut librarian Peter Kilburn was kidnapped by Hezbollah on his way to work. Kilburn was kept in detention by the group until shortly after the United States bombed Tripoli in April 1986. Agents acting on behalf of the Libyan government announced that they wished to buy an American hostage to execute to retaliate against the United States, after which Kilburn was said to have been sold to the Libyans for approximately three million dollars.<br /><p><br />In April 1986, a previously-unknown terrorist group called the Arab Commando Cells issued a statement declaring that it executed Kilburn and two British nationals in retaliation for the commencement of a US bombing campaign on Libya, but much doubt surrounds this claim. A lawsuit brought forth by the Kilburn estate in 2003 alleges that Libyan agents acting under the name Arab Commando Cells purchased and executed Kilburn along with two British nationals in 1986. Indeed, three bodies with gunshot wounds were found in the streets of Beirut. However, one source claimed that Kilburn had nine fingers and none of the bodies discovered were missing fingers. <br /><p><br />Another previously-unknown group called the Revolutionary Organization of Socialist Moslems also claimed responsibility for the execution of Kilburn, though they claimed Kilburn was hanged. After the group supplied photo evidence, it was discovered that their hostage was actually a British national named Alec Collet. To this day, the location of Kilburn's body is still unknown, though he is presumed to be dead.<br />