After the French put Zacarias Moussaoui on a watch list some time in 1999 (see 1999), they continue to discover more of his ties to militant groups. In late 1999, Moussaoui’s mother says a French intelligence officer contacts her and says her son’s name was in the address book of a man named Yannick who had died fighting for the Muslim cause in Bosnia. [Los Angeles Times, 12/13/2001] In April 2000, French investigators increase their interest in Moussaoui when they learn his best friend Masooud Al-Benin was killed while fighting in Chechnya. Investigators conclude al-Benin and Moussaoui traveled and fought together in Chechnya. Moussaoui’s mother is contacted by French authorities and asked about her son’s whereabouts and his connections to Al-Benin. [CNN, 12/11/2001] At some time in 2000, French intelligence follows Moussaoui to Pakistan. They believe he goes to see an al-Qaeda leader named Abu Jaffa. [CBS News, 5/8/2002] (Abu Jaffa, also known by the names Abu Jafar al-Jaziri and Omar Chaabani, is an Algerian in charge of al-Qaeda’s training camps in Afghanistan. It appears he will be killed in Afghanistan in late 2001.) [Knight Ridder, 1/9/2002] By 2001, French intelligence will be said to have a “thick file on Moussaoui.” [CBS News, 5/8/2002] When Moussaoui is arrested in the US, the French will send this information to Washington at the FBI’s request (see August 22, 2001 and August 30, 2001).