Highly placed military sources told ABC11 Tuesday that the U.S. Army Special Operations Command at Fort Bragg took part in the planning of the raid.
The sources said the USASOC gathered intelligence and used computers to model bin Laden's compound.
Commandos then built a replica compound in Afghanistan and used it for repeated practice runs for the operation.
Other details of the raid emerged Tuesday. The White House said bin Laden was unarmed when he was confronted but tried to resist the assault.
According to U.S. officials, one of bin Laden's wives tried to rush the commandos and was shot in the leg. High temperatures caused a lumbering helicopter carrying the raiders to make a hard landing. And as Navy SEALs swept through the compound, they handcuffed those they encountered with plastic zip ties and pressed on in pursuit of their target, code-named Geronimo.
Once bin Laden had been shot, they doubled back to move the prisoners away from the compound before blowing up the downed helicopter.