I lied and told the teacher that another kid took something from me. I just wanted to see what he looked like when he cried
You played such a dirty prank on him, why would you lie about what someone else did to see them cry?
Not a prank. It was a complete pleasure to see the other kid cry.
You like to get pleasure out of seeing others cry, but I wonder what makes you do that. Be nice to people and they will be nice to you. That kid that was lied about and cried could be the nicest person and you messed up the chance to be friends with him now.
I messed up his life, and now I don't feel bad for it.
You have this mean streak about you that worries me greatly. This has a medical term to it and I'm not sure if it is curable. But you can have it down for your records in case someone gets angry with you if you do this to someone else too, go see a doctor for your problem.