[Monkeys]

Using the normal player_hurt event won't work. As most have said, even if this uses the EventHookeMode_Pre, it won't fire in time for the plugin to stop the players death. You could only stop the deathmessage, and perhaps heal up but that I doubt.

noodleboy's right, you should use SDKHooks' OnTakeDamage, which can be modified in many ways.