Federal agents looking for Nabil al-Marabh fail to find him at an old Detroit address, but they accidentally discover three other possible operatives there. Karim Koubriti, Ahmed Hannan, and Farouk Ali-Haimoud are arrested. They were working as dishwashers at the Detroit airport. Investigators initially believe they were casing the airport for possible security breaches. [Boston Globe, 11/15/2002] An associate of theirs named Abel Ilah Elmardoudi will be arrested in North Carolina in November 2002. [Boston Globe, 11/15/2002] All four men will be put on trial. Initially, the evidence against them appears strong. For instance, a notebook is found that seems to show a plot to assassinate ex-Defense Secretary William Cohen during a visit to Turkey. [Washington Post, 9/20/2001; Associated Press, 11/17/2001] A stash of false documents is also found, and the men have false passports, Social Security cards, and immigration papers. Some of these documents connect them to al-Marabh. [Boston Herald, 9/20/2001; ABC News 7 (Chicago), 1/31/2002; Boston Globe, 11/15/2002] Al-Marabh had moved out of the Detroit address and the men moved in about two years earlier. [Local 4 News (Detroit), 9/22/2001] In June 2003, Elmardoudi and Koubriti will be convicted of conspiring to provide material support to terrorists and Hannan will be convicted of document fraud. However, the case against them will later fall apart amidst charges of prosecutorial misconduct. The so-called assassination plot on Cohen, for instance, appears to have been based on random doodles by a mentally unstable friend. All convictions will eventually be overturned and the men will be freed (see June 2003-August 2004).