Christians: I am a good follower, knowingly I'm going to heaven but...?

I don't want to go to heaven. You see, my brother is a Satanist and believes in Anti-Karma, so he does bad things and believes that good things are gained in return. He truly hates god and talks about how much he hates him every day. He has pictures of Hitler, Jim Jones, Satan, demonic symbols, the antichrist, suffering people, osama bin laden, etc. He just loves all evil! He makes evil too. But he is awesome without his beliefs! I love him the most out of my family, and I don't even think he'll go to heaven. He says he doubts there's an afterlife anyway because he thinks god is a ******** and hates us so he wont make one for us. I want him to go to heaven or I'm going to hell! What should I do!