Why so much mad people on like seriously

Explain why hitler had over 6 million jewish people killed during the holocaust and what did it hope to accomplish

Is karma the same as destiny, in the sense that everything that happens to you is predetermined? do you believe that "what goes around comes around," and if so is this the same as karma? does everyone get what they deserve, in the end?

The christians in jerusalem met in the catacombs for their worship service