James Aubrey:  Okay , Doc , lay it on us . What 'd you think ?
Karen Delfs: Great . Well , in my professional opinion , I would say the killer is extremely intelligent , possibly schizophrenic and completely and totally cray - cray
Seeley Booth: Cray - cray ? What does that mean ?
Karen Delfs: Oh , it 's slang for crazy
James Aubrey: What are you , _ 13 _ ?