I just found out my two classmates had a car accident and I'm kind of satisfied with it.
Are you joking? How in the world could you be feeling a sense of satisfaction about this?
Because they were so annoying and their deaths will shut them up.
I think how your feeling is bad. It is wrong to revel in the pain of others. I know that they did something that annoyed you, but you shouldn't wish for them to die because of it.
It was exciting to hear about it.
You are being what most would consider a terrible and rotten person. You're going to lose all of your friends if you continue going around talking about how death has made you happy, because being gleeful when people have died is considered such a horrible and terrible thing.