This sick act will stay with us all, but it must have been a big shock for the people of New Zealand. As you say, we have to talk to people to resolve differences peacefully. I don't go looking, but I suspect that there is lots of material on-line trying to poison vulnerable minds with hatred. I don't feel the need to watch his video or read his 'manifesto'. I don't expect to find answers there. We need politicians and other leaders to speak out against attacks on other cultures. Your prime minister has set a good example.
Stand strong.