Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) The man suspected of stabbing a police officer at a Michigan airport was denied a gun purchase in the Flint area within the last five days because he's not from the United States, a law enforcement source told CNN on Thursday. Amor Ftouhi, 49, a citizen of Canada and Tunisia, has been charged with violence at an international airport, officials said. The FBI is investigating Wednesday's stabbing at Flint's Bishop International Airport as a terrorist act. Authorities said Ftouhi yelled "Allahu akbar" -- "God is the greatest" in Arabic -- and pulled a roughly 12-inch knife with an 8-inch serrated blade and stabbed Lt. Jeff Neville in the neck. Neville is expected to be released from the hospital this weekend.Doctors expect hospitalized officer to be released sometime this weekendSuspect traveled to US legally by car at Lake Champlain, New York, FBI says 
 Question:A previous version of this story misspelled _'s last name.

Ftouhi