Peterson, 58, was married to Savio in 2001 when he had an affair with then-17-year-old Stacy Kales, who later became Stacy Peterson.

CNN: STORY HIGHLIGHTS

In October 2003, three months after giving birth to what was Peterson's fifth child, the then-19-year-old Stacy Kales and 49-year-old Drew Peterson married.

CNN: Drew Peterson saga moves to the courtroom Tuesday

Peterson was married to Savio in 2001 when he met then 17-year-old Stacy Kales (who later became Stacy Peterson), and those two began having an affair.

CNN: Drew Peterson saga moves to the courtroom Tuesday