"Was this real, a fire drill or a faulty alarm? Before anyone exited the building, a staff member came in the cafeteria and said it was a false alarm"

During 9/11 when the first Tower was hit by the airplane, an evacuation of the second tower was ordered. People in all floors responded, but especially the upper floors. They began descending the stairwells. After a few minutes, a voice came over the loudspeakers in the second Tower telling everyone NOT to panic and return to their jobs. "The problem was confined to the first Tower, there was no need for panic or evacuation, and everyone should return to their desks and carry on working".

Many people responded ... and returned to their jobs on the upper floors of the second Tower.

ALL those people died.
You know what happened. Another airplane hit the second Tower.

How do I know this?

I know someone who worked above the 100'th floor of the 2'nd Tower. That person IGNORED the instructions to abandon the evacuation and they continued down to the ground ... down the stairwell. They ONLY JUST made it out of the building. But they did make it.