HUNTSVILLE, Ala. (WHNT) - Few people saw the magnitude of the Oklahoma City bombing as well as David Heaven, retired FBI bomb technician and native of Cullman County.
He was sent to Oklahoma City five days after the bombing to oversee the sorting of evidence.
DAVID HEAVEN/RETIRED FBI AGENT:> ill be honest with you, it was the biggest crime scene I`ve ever worked.
"It was all sifted through quarter-inch screen, every bit of 135 truckloads of evidence," he recalled.
He remembers walking through the gutted building.
"Ordinarily you walk in a room, you expect to see a ceiling, four walls, and a floor," he began. "Walking through that crime scene, they're not all there. We had to guard the building 24 hours a day."
And when it was his turn to guard, a fire broke out.
"In the course of putting out the fire, they found one more body," he remembered.
That human aspect is what made it daunting, down to a letter received from a local elementary schooler.
"I've kept it to this day," he said as he held it in his hands. "The letter says, 'did my baby sister get killed, I'm sorry for the kids.'"
Through his 26-year career, he says it was humbling, with memories he'll never forget.
"When you're going through 135 truckloads of debris, you know there's not just evidence in there. There are people in there."
Heaven retired from the FBI in 2003 and says the bombing was the largest crime scene he had ever worked.