Bartlett was taken to a hospital because of his distraught state, but police interviewed him after he was released.
“The lack of emotion that the suspect showed after his release from the hospital really indicated to us that probably he wasn't being up front and honest with us,” Cole said.
After about three hours of questioning, Bartlett confessed to killing his wife, Cole said. He told investigators he put the knife, a computer and his clothes into a duffel bag and threw it into Lake Overholser. Police had not recovered the bag Monday.
Cole said police had never been sent to the home about a domestic dispute, and neighbors said they had never heard the couple fighting.
Bartlett's Facebook page, listed under the first name of Reggie, features a profile photo of himself and his wife. The portion visible to the public lists him as a 1970 graduate of Northwest Classen High School in Oklahoma City and a 1973 graduate of Oklahoma Baptist University.
The Facebook page says Bartlett expected to retire in four years from his supervisory job at Bethany's water treatment facility. He says he loves to play golf, attend University of Oklahoma football games and ride around town in his Jeep with the top down.
Cathy Bartlett's Facebook page lists her maiden name as Rounds and says she is a retired social worker from the state Department of Human Services. It lists her as a 1972 graduate of John Marshall High School and that she also attended a high school in Washingtonville, N.Y., and is a 1976 graduate of Oklahoma Baptist University.
The Bartletts' 30th wedding anniversary would have been Jan. 31, according to the victim's Facebook page. She said she attended an art group and Bible study sessions and listed her interests as reading, painting and knitting.
The pair did not have a child together, according to their Facebook pages, but Reginald Bartlett has a son from a previous marriage.
Cole said he knew Bartlett because both have worked for the city of Bethany more than 20 years.
“I would say you'd be hard pressed to find any employee who did not know him,” Cole said. “ ... Certainly, we're shocked.”