UPDATE: I know the owner but it won't accept it. I know the owner because, when I changed the password for the gmail account, it came up with 2 of his Google Play apps to check. Additionally, when I went into the actual email account (on the PC of course), the account was created on 12/6/16, which would be when we received the tablet for his Christmas present.
So, the question now is, any suggestions as to how to get the tablet to accept the correct owner information?