How can I install it?!
1. You need to install Skript to your pluginsfolder: http://dev.bukkit.org/bukkit-plugins/skript/
2. Download the skript and put it into the plugins/skript/scripts/ folder (the .sk, not the .zip!
3. start the server or use "/skript reload all"
It's set to take 10% balance of the person how died and gives it to the killer you can change the percentage so the player could get 100% of his money