Identity Crisis

The team once more investigates a crime scene left by serial killer Paul Millander. Probing of the crime scene and the files from his past murders, the team realizes that all the victims shared the same day of birth, the day of the murder of Paul Millander's father, with the birth years descending: 1959, 1958, 1957... Grissom believes that he's the next target of Millander since common date of August 17 happens to be his birthday as well... and he was born in 1956.