Drew Peterson's fiancee moves out

Derek Armstrong, author of "Drew Peterson Exposed" said Peterson blamed the father of Christina Raines for the breakup.

Armstrong said Ernie Raines showed up Friday morning with a news crew and the police to "move out her stuff."

For the first time since his engagement, former Bolingbrook policeman Drew Peterson talked publicly about the woman who plans to become his fifth wife.

Peterson, 55, appeared on ABC's Nightline Thursday night and talked about his relationship with his fiancee and about their wedding plans.

Among other things, he discussed how he understands why his past would cause some to question his fiancee's choice to marry him.

Peterson is still legally married to his fourth wife, Stacy, and he remains a suspect in her disappearance in the fall of 2007.

Peterson said he hoped to marry his fiancee, who is more than three decades younger, in the next few months.

Peterson said that his much younger fiancee likes him because he's a "good guy." She turned down a request for an on-camera interview.

Authorities are also investigating the death of Peterson's third wife, Kathleen Savio, whose body was found in an empty bathtub in her house in 2004. The former Bolingbrook police sergeant hasn't been named a suspect in her death.

The Associated Press contributed to this report.