
Quoting
Mr. Knowitall
If you can prove that the landlord knew or should have known that the camera was present, you are in a good position to argue that the landlord's breach of your rights as a tenant justifies your breaking your lease. If you cannot, the situation becomes more complex. Your apparent suspicions about your landlord, even if well-founded, are not of themselves sufficient to keep your landlord from reporting your default on your lease or non-payment of an early termination fee to a credit reporting agency.
You found a camera. One would reasonably infer that this is some type of digital camera. Was it connected to power? If it is a wifi camera, was it connected to the Internet such that it could broadcast? If not, who would have had access to the attic space and how long ago were the last images recorded before the media became full? Have the police determined anything about the camera, its placement, or any other details that might clarify when and by whom the camera was placed above the bathroom?