local trapPart = script.Parent

local function onPartTouch(otherPart)

local partParent = otherPart.Parent

local humanoid = partParent:FindFirstChildWhichIsA("Humanoid")

if ( humanoid ) then

-- Set player's health to 0

humanoid.Health = 0

end

end

trapPart.Touched:Connect(onPartTouch)

Line by Line

local trapPart = script.Parent

This line defines a variable called trapPart and links the script to the part the script is under