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I am sorry to hear about this situation.
1) Someone in your situation does want to file a police report. At the very least, the bathroom camera is improper. It prohibited from installing a camera or other recording device "in any private place, without consent of the person or persons entitled to privacy there." Del. Code Ann. tit. 11, § 1335(2). The law also bars the use of hidden cameras to record individuals dressing or undressing in a private place. Del. Code Ann. tit. 11, § 1335(a)(6), -(7).
2) Anyone found responsible for the above may face a civil suit under Del. Code Ann. tit. 11, § 2409(a), as well as common law invasion of privacy doctrine, and seek actual and punitive damages.
3) If the cameras were placed there by the owners, they can try to claim that they were looking out for the ward. However that does not allow them to tape other individuals in the bathroom!
4) So yes, the first thing is to file a police report. Then, one wants to speak to an attorney face to face once it is known who the cameras actually belong to.
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