The dark side of human nature.
He witnessed how easy it was for them turn on others.
When they so easily turned on him.
Humans, who let their emotions rule over their decisions.
He was unsure what to think of them at that moment.
So shell-shocked at their sudden change of heart.
They were so scared, so frightened of something so simple.
They made their decision and there was no way of stopping them.
That was the dark side of human nature.