Boy, you only 14 years old. It's not nice to talk bad about others especially when it comes to people who no longer here. And you use a very foul language boy. Its not good. How about recite him Al- Fatihah and pray he rest peacefully underneath there. Even if you hate his jokes, why don't you just shut up and at least respect every people who mourn for the lost.
This boy needs parental punishment. I mean, pronto! Or I'll rotan him by myself.