The FBI ended its search of the rubble from the bombed federal building on Saturday and released the site to its federal caretakers.
FBI agent Dan Vogel wouldn’t comment on what investigators found but said the additional evidence would be sent to the FBI lab in Washington.
The General Services Administration has not decided what to do with the site where the Alfred P. Murrah Building once stood. The building was demolished May 23.
Residents want a memorial. Suggestions include a statue of the firefighter who carried a mortally wounded baby from the building just after the April 19 blast that killed 168 people.
Demolition crews bulldozed the remains of an apartment-building garage, one of 270 structures damaged by the bombing.
The body of Alvin Justes, the last pulled from the rubble, was returned to Lexington, Ky., for burial Monday. Justes, 54, a retired factory worker, was in the federal credit union at the time of the blast.
The United Way of Metro Oklahoma City released a preliminary report on services provided to rescue workers, victims and survivors. These included 176,892 meals, 262 hotel rooms and 86 funerals provided by the Red Cross, and 103,829 gloves, hard hats, knee pads and ponchos distributed by the Salvation Army.