Witnesses in the Oklahoma City bombing trial are taking jurors on a virtual tour of life at the Alfred P. Murrah Federal Building as they describe how an ordinary morning became blood, chaos and death.

They greeted co-workers, dropped their kids off at day care and sipped coffee at the start of April 19, 1995.Michael Norfleet, then a recruiting officer for the Marine Corps, had stopped to speak to his commanding officer when the bomb hit.

"I took a piece of glass from the top of my head, and it flayed open my right eye," he testified Friday. "It cut an artery in my forehead. It cut an artery here in my cheek; and at the same time, it cut an artery on my wrist.

"I could feel the life ebb out of my veins. I just knew that I was losing strength and that if I stayed in the building I would die."

Norfleet said he followed a trail of blood down the building's steps and found help. Doctors later told him he had lost 40 to 50 percent of the blood in his body.

Norfleet was one of nine witnesses the prosecution presented on the first day of day testimony in the trial of Timothy McVeigh, accused of killing 168 people in the bombing.

Testimony was to resume Monday when Danny Atchley, a fire department photographer who pulled injured children from the rubble, goes back on the stand.

As witnesses testified, U.S. Attorney Patrick Ryan had them mark a floor plan of the nine-story building with spots where their colleagues died.