How many bombs?
The Key committee talked to a number of witnesses who were in the Murrah building at the time of the blast who said they felt it “shaking before the bombing and assumed it was an earthquake,” suggesting that there was another blast before the truck bomb went off in front of the building that was ultimately blamed for all of the damage. Some of those witnesses told the committee they owed their survival “to having had time to seek protection under their desks just before the [truck] bomb exploded,” the report said. Also, the committee obtained seismologic evidence from an expert source that “supports the fact that there were multiple explosions” that morning. But, as was the case with other witnesses, the expert “was not allowed to testify at the federal trials,” the report says. The committee noted that estimates of the size of the ammonium nitrate-fuel oil (“ANFO”) truck bomb changed frequently, but officials eventually said the bomb was 4,800 pounds. “This finding was calculated on i
