Well depending on which news source you believe.
Al-Jazeera says US troops, occupying a school, opened fire on men, women and children, when rocks were thrown at them. The protestors, according to this source say the people were protesting the US presence at the school, as they wanted classes to resume.
The US military says they were fired on by infiltrators of the group, uding AK-47s, at whom they returned fire.
Of course, Al_jazeera interviews the women and children in the hospital who were just minding their own business when the big bad US Army starting shooting for laughs.
Somewhere between the Military account, and the Al-Jazeera account, lies to truth.
Why does Al-Jazeera insist on fanning the flames?
Can anyone honestly believe the US would open fire on people throwing rocks?
There was Kent state, so I suppose it's possible, but as always, I'll be waiting for the facts. I certainly won't hold my breath.