You played the tape and The video begins with 6 encoded messages appearing on screen before disappearing. These translate to:

"Hello. My name is Detective Stewart. If you have decoded this, then you are exactly the kind of person I am looking for. I need your help. I am working on a case that I have been ordered to stay out of. There is so much going on, but I'm only focused on one thing. Where is the GreyWhinder Family. I have a lead from various VHS tapes found in the GreyWhinder home. It's all very difficult to understand, but with your help we can bring this case to a close."