Here is a timeline of the alleged terrorist plot that federal prosecutors say was concocted by Rezwan Ferdaus.
▸Early 2010: Ferdaus begins planning to commit a violent jihad against the United States.
▸January 2011: Ferdaus tells a cooperating witness he plans to attack the Pentagon using small drone airplanes filled with explosives and guided by GPS equipment.
▸April 2011: Ferdaus expands plans to include the US Capitol building.
▸May 2011: Ferdaus begins researching, ordering, and acquiring materials for his plan, including one remote-controlled aircraft. He also travels to Washington to conduct surveillance of his targets and proposed launch site. He decides to plan for a ground assault to go along with his aerial attack.
▸May and June 2011: Ferdaus delivers thumb drives to undercover agents containing detailed plans to attack the Pentagon and Capitol. He obtains cellphones and modifies them to become triggers for improvised explosive devices. He provides them to FBI undercover agents he believes to be members of, or recruiters for, Al Qaeda.
▸June 2011: Ferdaus is told that his cellphone triggers worked, and the bomb killed three US soldiers and injured four or five others in Iraq. He appears gratified. That was exactly what I wanted, Ferdaus says. He also rents a storage facility in Framingham under a false name to build his planes and maintain his equipment.
▸August 2011: Ferdaus receives a remote-controlled aircraft at the storage facility.
▸Sept. 20, 2011: Ferdaus makes a training video, which he provides to undercover agents, demonstrating how to make cellphone detonators.
▸Yesterday: Undercover agents deliver to Ferdaus what he believes to be explosives, grenades, and six fully automatic assault rifles. After inspecting them, Ferdaus takes them to his Framingham storage unit. He is immediately arrested.