What is the code to kill a player?

Simply, the highest recommendation script is just set the humanoid with 0, to kill. There have a lot of ways like BreakJoints(), TakeDamage(). Should I need to say anymore? The BashCaster have a better way to explain, here is the comment.

'There are numerous ways to kill a player, but Humanoid :TakeDamage() is the most highly recommended way to have Humanoid take damage. Unlike directly subtracting the Health value or using BreakJoints(), TakeDamage() does NOT interfere with the Humanoid's ForceField (if it is currently active). It is also way simpler than subtracting the Health value.'

The best way is not choosing the people, simply kill them using a script like this:

game.Players.Playernamehere.Character:WaitForChild("Humanoid").Health = 0

This because when the people don't get loaded or spawned, the script will start, and then they'll kill a people, but there have no people named as the specific name, so the script will set them to 'nil'.

It has some script of killing player, I highly recommend, don't kill them when people spawned. You just can do a lava part, like the parkours, when you touching it, you'll die.

The script is here, but firstly, the script must be parented by a part.

The script is here.

script.Parent.Touched:Connect(function(plr) -- the plr is localed to player. 
 plr:FindFirstChild("Humanoid").Health = 0	-- sets the Humanoid's health to 0.
end

But, I'll talk about the title of what they have should want. They're a way to make people die when loaded. With a specific player.

We just need to do a thing, LoadCharacter(). Yeah, simple. Right? The way to use was like this.

game.Players.[PlayerName]:LoadCharacter()
	[PlayerName]:FindFirstChild("Humanoid").Health = 0	-- sets the Humanoid's health to 0.
end

I don't know how is this working, this has been my first time to use :LoadCharacter. So maybe they'll not work or anything.

Comment below if you have any more issues, or the script doesn't work.