How to kill people if I sit in a seat if they are not the specified person sitting in the seat?

I want to be able to have a string value with a player's name so that only that player can sit in a Seat object, if it is not the player then kill the person sitting in the chair

I'm not sure if this is correct, you may need to double check this:

seat = SEAT PATH HERE
access = {"fahmisack123" , "fahmisack123", etc..}

function Check(Player) --Sets a function
	player = Player.Parent:FindfirstChild("Humanoid") --Checks if it's a character
		if player ~= nil and player.Name ~= #access then --If it IS a character AND has their name in the access table then...
			player.Health = 0 --...Kill
		end
end

while true do --So it happens many times, not only once
	seat.Touched:connect(Check) --Calls the function
	wait() --Makes sure Studio and the game doesn't crash
end

----------------------- PLEASE NOTE -----------------
THIS MAY NOT BE CORRECT AS I AM NOT A PERFECTLY GOOD SCRIPTER
-----------------------------------------------------

This would be the best way to do it:

local Seat = SEAT_PATH_HERE
local Access = {"TurboFusion","wargod435",...}
function IsAccess(Player)
	for _,v in pairs(Access) do --Iterates through the Access table
		if string.lower(Player.Name) == string.lower(v) then --Checks to see if the player's name is in the table
			return true
		end
	end
	return false
end

Seat.ChildAdded:connect(function(Child) --This event fires whenever a child is added to the seat
	if Child.Name == "SeatWeld" then --If the child is a seatweld...
		local Player = game.Players:GetPlayerFromCharacter(Child.Part1.Parent) --Gets the player
		if Player then --If the player exists...
			if IsAccess(Player) then --Calls the IsAccess function and checks if it's true
				--Do stuff
			else --if it's false...
				Player.Character.Humanoid.Health = 0 --Kills the player
			end
		end
	end
end)

Hope this helped!