Yes something did trigger the shooting, though they were wrong to fire at those that they did fire at.
As one of our friends on here says ‘put yourself in their position’ they were being stoned and bottled, rubber bullets had failed to disperse the crowd.the soldiers left the barricades to make arrests and heard shots, they then opened fire. Incorrectly opened fire yes, but to charge this man for murder is wrong it wasn’t premeditated and planned. He is being used as a sacrificial lamb, those higher up need to be prosecuted.
This was not a peaceful march it was in fact illegal but that does not justify the killings.
Later we were issued the ‘yellow card’ this gave us our ROE and were strictly enforced, sometimes at the cost of soldiers lives.