Kill All

getgenv().killall = true -- false/true
local players, plr = game:GetService("Players"), game:GetService("Players").LocalPlayer

while getgenv().killall do
    pcall(function()
        local char = plr.Character or plr.CharacterAdded:Wait()
        local knife = char:FindFirstChildOfClass("Tool") or plr.Backpack:FindFirstChildOfClass("Tool")
        if knife and knife.Parent == plr.Backpack then knife.Parent = char end
        if knife then
            for _, player in ipairs(players:GetPlayers()) do
                if player ~= plr and player.Character and player.Character:FindFirstChild("HumanoidRootPart") then
                    .(()
                        knife:()
                        (player.Character.HumanoidRootPart, knife.Handle, )
                        (player.Character.HumanoidRootPart, knife.Handle, )
                    )
                    ()
                
            
        
    )
    ()