Peterson has become the focus of the investigation, and police searched his home and his car Thursday. They have also sent divers and cadaver dogs to search a pond near the couple's home.
Stacy, 23, was on her way to visit her sister Sunday, but never showed up. Peterson, 53, said Stacy called him Sunday night and told him she was leaving. He said she has suffered from "mood issues" since a sister died.
He told reporters that he believes she left him for another man.
The couple's two young children are staying with neighbors.
Source. abc
