Last lines of code wont make part disappear, no errors either?

local larm = script.Parent:FindFirstChild("HumanoidRootPart")
local rarm = script.Parent:FindFirstChild("HumanoidRootPart")

function findNearestTorso(pos)
	local list = game.Workspace:children()
	local torso = nil
	local dist = 125
	local temp = nil
	local human = nil
	local temp2 = nil
	for x = 1, #list do
		temp2 = list[x]
		if (temp2.className == "Model") and (temp2 ~= script.Parent) then
			temp = temp2:findFirstChild("HumanoidRootPart")
			human = temp2:findFirstChild("Humanoid")
			if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then
				if (temp.Position - pos).magnitude < dist then
					torso = temp
					dist = (temp.Position - pos).magnitude
				end
			end
		end
	end
	return torso
end


while true do
	wait(math.random(0,0))
	local target = findNearestTorso(script.Parent.HumanoidRootPart.Position)
	if target ~= nil then
		script.Parent.Humanoid:MoveTo(target.Position, target)
		wait(5)


		local char = script.Parent
		local humanoid = char.Humanoid
		local head = char.Head
		
		for i = 1,6,1 do
			if i == 1 then
				script.Parent.laser.Transparency = 0.5
				wait(0.5)
				script.Parent.Humanoid.WalkSpeed = 0
				wait(2)
				script.Parent.laser.Transparency = 0
					local damage_delay = 0.35
						local damage = 5

						local part = script.Parent.laser
						local region = Region3.new(part.Position - (0.5 * part.Size), part.Position + (0.5 * part.Size))

						while wait(damage_delay)
						do
							for _, part in pairs(workspace:FindPartsInRegion3(region, nil, math.huge))
							do
								if part.Name == "Right Leg" then
									local human = part.Parent:FindFirstChild"Humanoid"
										if script.Parent.laser.Transparency == 0 then
										human.Health = human.Health - damage
									end	
								end
							end
						end
			else
				script.Parent.laser.Transparency = 0.5
				wait(0.5)
				script.Parent.Humanoid.WalkSpeed = 0
				wait(2)
				script.Parent.laser.Transparency = 0
						
						local damage_delay = 0.35
						local damage = 5

						local part = script.Parent.laser
						local region = Region3.new(part.Position - (0.5 * part.Size), part.Position + (0.5 * part.Size))

						while wait(damage_delay)
						do
							for _, part in pairs(workspace:FindPartsInRegion3(region, nil, math.huge))
							do
								if part.Name == "Left Leg" then
									local human = part.Parent:FindFirstChild"Humanoid"
									if human ~= nil then
										if script.Parent.laser.Transparency == 0 then
										human.Health = human.Health - damage
									end	
								end
							end
						end
					end
				end
			end
		end
	end
wait(2)
	for i = 1,6,1 do
		if i == 1 then
			script.Parent.laser.Transparency = 1
			script.Parent.Humanoid.WalkSpeed = 7
		else
			script.Parent.laser.Transparency = 1
			script.Parent.Humanoid.WalkSpeed = 7
		end
	end

wait(2)
	for i = 1,6,1 do
		if i == 1 then
			script.Parent.laser.Transparency = 1
			script.Parent.Humanoid.WalkSpeed = 7
		else
			script.Parent.laser.Transparency = 1
			script.Parent.Humanoid.WalkSpeed = 7
		end
	end

This is the lines of code that are not activating, Can anyone show me why? I want the part called laser to disappear after, but it isnt doing that.