how to have 3rd person camera move like 1st person camera

I have a third person character with the camera currently attached to the character object, following him and turning when the character turns. What I would like is the camera to be able to be rotated when I move the mouse in order to make a third person shooter game with more control over where the character can look. I attempted to play with the MouseLook script from the Imported First Person Controller but had no luck. Does anyone know a solution to this? Using Unity 5.2.3