A timeline: How officials say the plot unfolded
January -- Quazi Mohammad Rezwanul Ahsan Nafis, 21, of Bangladesh, arrives in the United States on a student visa. He lives in Queens.
Early July -- Nafis contacts an FBI informant and tries to recruit the informant into a jihadist cell to carry out a terror attack on U.S. soil.
July 6-8 -- Nafis, the FBI informant and a purported co-conspirator begin to communicate via Facebook.