BOSTON: (FILE) Nabil Al-Marabh, 34, is shown in this recent but undated photo from a Boston police taxi driver's licence. The FBI said Al-Marabh, who is on the list of people wanted for questioning, was taken into custody on Wednesday night, September 19, outside Chicago. FBI spokeswoman Mary Muha said he was being held on a US Immigration and Naturalisation Service request and a warrant issued in Boston for assault with a knife. —AP/PTI