How to make scripts read other scripts?

        local sheriff   
        local murderer
        local innocent  = {}

        local players = game.Players:GetPlayers()
        murderer = players[math.random(#players)].Name
        sheriff = players[math.random(#players)].Name
        for i,v in pairs(players) do 
            if v.Name ~= sheriff and v.Name ~= murderer then 
                table.insert(innocent, v.Name)
            end
        end

        print("MURDERER: "..murderer,"SHERIFF: "..sheriff, "INNOCENTS: "..table.concat(innocent,", "))

Ok, so I have tried the wiki, for about 4 hours, with no luck. This script will pick 1 murder, 1 sheriff, and the rest innocent, but I need another script within a gui needs to read this and check what role a player has, so it tells the players what role they have. Anyone have a solution