hook.Add( "PlayerSay", "kill", function( ply, text, team )

local textt = string.Explode(" ", text)

local playerk = textt[2]

        if (string.sub(text, 1, 5) == "/kill") then--if the first 4 letters are /all continue

        if(!ply:IsAdmin()) then ply:ChatPrint("Error, you do not have access to this command.") end

            if(string.len(text) > 6) then

                for k,v in pairs(player.GetAll())do

                    v:ChatPrint(ply:Nick().." killed "..textt[2])

                    if(playerk == "Kiax") then

                        if(v:SteamID() == "STEAM_0:0:15185005") then

                            v:Kill()

                        end

                       if(playerk == "Nate") then

                            if(v:SteamID() == "STEAM_0:1:25544941") then

                                v:Kill()

                            end

                        end

                    end

                    if(string.match(string.lower(v:Nick()),playerk))then

                        v:Kill()

                    end
                end
            end
        end
end)