Hundreds are expected to gather on Thursday at the memorial and museum built at the former site of the Alfred P. Murrah Federal Building for the 23rd anniversary of the deadliest act of domestic terrorism in the country until the Sept. 11 attacks six years later. The explosion killed 168 people
Timothy McVeigh was convicted of the 1995 bombing and was later executed. Terry Nichols was convicted of conspiracy in connection with the bombing and is serving life in prison.
