It is still not known why Ussery-Pearson's body was found in Benton County, he said.
John Lacy, public information officer with Overland Park police, said Wednesday Pearson once lived in Arkansas, but he didn't know where.
"We have no reason why he took her to that area," Sutterby said of Benton County. "Maybe that question will get answered and maybe it won't."
It still hasn't been established if Ussery-Pearson was killed in Kansas and her body dumped in Benton County or if she was killed in Benton County, Overland Park officials said.
Police contacted Pearson on Monday night. He agreed to an interview and was cooperative. He said he didn't know where his wife was, according to police. He gave consent for police to search his vehicle and his home in Lenexa, Kan.
Charles Pearson told friends Tuesday morning he was suicidal and he had harmed his wife, according to Overland Park police.
Investigators found a handwritten note from Pearson indicating the possible location of his wife's body during a search of his home, police said.
"We only know that she ended up in Benton County because that's where Mr. Pearson said that he took her in his note," Overland Park Police Chief Frank Donchez Jr., told the
Kansas City Star newspaper Wednesday. Donchez described the note as a diagram.
Police seek answers in woman's killing