Can anyone help me with my AI script running through a function for no point?

its my first time making an AI and the error i have came across is at the if "Victim == nil" my problem with it is that even if it finds a player it continues to go through the function even though the scripts says that the victim variable is not nil

wait(2)
local runService = game:GetService("RunService")
local Players = game:GetService("Players")

local humanoid = script.Parent
local root = humanoid.Parent.HumanoidRootPart

function findPlayer()
    local playerList = Players:GetPlayers()
    for i, player in pairs(playerList) do
        print("finding player")
        if (root.Position - player.Character.HumanoidRootPart.Position).Magnitude <= 5 then
            print("found player")
            return player       
        end
    end
end

while true do
    wait(.1)
    local Victim
    if Victim == nil then
        Victim = findPlayer()
        print("finding player")
    else
        print(Victim)
    end
end