[Raycpa]

Someone ran over a crowd of people with the car. occurred at same time a fire alarm was pulled. Also reported it is possible there were two different scenes and this student did not see whole thing.

[MaskedMan]

Likely scenario:

Some idiot pulls the fire alarm to avoid taking a test. Another idiot is texting while driving and plows through the students running from the fire alarm. Panics, gets out of car and is shot dead by LEO.