This is really wierd and i know its a stupid ask but i kinda need help?

listen u see me and my friend are making this game and for npcs mobs my friend got this good mob model the prob doe is i cant understand how to turn its respawn off when i try it the mob stops moving heres the model id it says my name because idk where he got this model so i pasted it myself oh also the random script just ignore that i tried to edit it to drop money also heres the link https://www.roblox.com/library/4483529516/Bandit btw im sorry for asking a dumb question and for that i will also ask how will i make it that when a mob dies a function triggers because i tried the humanoid.Died lots of times in mutliple ways but never works thats all thanks

This is really a bad question...

if Character.Humanoid.Health == 0 then
--happening
end