Unfinished Business
- Episode aired Mar 1, 2006
- TV-PG
- 42m
When a serial killer reappears, the team works with a retired BAU agent who just published a book about the perpetrator.When a serial killer reappears, the team works with a retired BAU agent who just published a book about the perpetrator.When a serial killer reappears, the team works with a retired BAU agent who just published a book about the perpetrator.