The only record of a one eyed man in Islam is Dajjal. Also known as the False Messiah.
I know it's unlikely, but let's just say what if. What if these people in all of their fanaticism got tricked by some being calling itself God. It then convinces them to hand over their bodies to "God" and it then commits these deeds to achieve some larger goal.
I have no way of knowing what that goal might be but my guesses are; one, just to get their name out there, two, to try to get some kind of revenge on the Islamic faith as a whole by starting conflict or war, three, to gain some kind of power from faith or fear.
The first one is under the assumption that a "God" gains power based on recognition, or is trying to get its name out there to gain more followers. But, most of the people had face coverings, which seems to mean it doesn't want its name out there.
