"Is he the FBI PI CIS part time detective investigator PI FBI?"
Only in his warped little mind. The FBI office in L.A. has never heard of him, other than they'd like to locate him to ask why he claims to be working for them. His "IPI/FBI" claim is his way of making people think he is an independent private investigator working on behalf of the FBI. I guess anyone could claim to be that, but the problem is that first you need a brain. He therefore fails step one.