How can you make a script tell if a user has died or been respawned?

Im making a hotel room board and it will check if the user has left or has been respawned and idk how to check for that.

The humanoid has its own function that runs when the player (humanoid) dies.

Checking if the humanoid died with a local script

local player = game:GetService("Players").LocalPlayer
local humanoid = player:WaitForChild("Humanoid")

humanoid.Died:Connect(function()
    --Do stuff
end)

Checking if the humanoid died with a script

--This script is parented to ServerScriptService

game.Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		local humanoid = character:WaitForChild("Humanoid")
		if humanoid then
			humanoid.Died:Connect(function()
				--Do stuff
			end)
		end
	end)
end)

Define all the players in a local script. Then do a DiedFunction, then make a Frame visible. Thats pretty much it Not going to give script.

 game:GetService('Players').PlayerAdded:connect(function(Player) Player.CharacterAdded:connect(function(Character) 
print('Character has been respawned.') 
Character.Humanoid.Died:connect(function() 
print('Character has been killed.') 
end) 
end) 
end)