For every few who are 'martyred' there are many more ready to take their place. Stupidty is contagious and somewhat a function of our environment especially during
childhood.
I think we will continue to see such incidents in our lifetimes. Selfish Geopolitics, weapons profitering, nationalism, blind 'faith' etc etc means this cycle will probably continue.
Sadly people disregard this (and i believe only) life in their idiotic belief of a better next life.