Deputies said they returned with a warrant and eventually dug up a bone, other remains and some clothing.
Records show the couple had a domestic dispute in 2014 in which Laurie Shaver hit her husband with a gun. Michael Shaver was arrested because deputies believed he pulled the weapon first.
There are no records that show the couple ever divorced, but neighbors said Laurie Shaver was remarried and had the ceremony in the backyard in the area where investigators have been searching.
"She has always been a suspect. Detectives are confident she is the last person to see Mr. Shaver alive and that's based upon their investigation, in the loose time frame they have been able to put together," said Lt. john Herrell, of the Lake County Sheriff's Office.
Laurie Shaver’s attorney said she is cooperating. The lawyer said after a warrant was issued, she gave a DNA sample.
Shaver’s cause of death has not yet been determined.
Deputies said the investigation is ongoing.