A police officer pleaded guilty Tuesday to felonious assault in connection with a shooting in Adena.

James Kessler, 29, a part-time New Athens police officer, used his official police weapon to shoot William Sutton in Sutton's own driveway.

Kessler was not sentenced because police said the investigation is ongoing. He could get two to eight years in prison.

Prosecutors said they believe Kessler and the victim's wife, Jennifer Sutton, were in a relationship.

"(Kessler) is involved in what we believe was a conspiracy with the victim's wife and his cooperation will bolster the prosecution of her case," said prosecutors Tom Straus.

Officials said Kessler is cooperating with the prosecution and is expected to testify against Jennifer Sutton.

Jennifer Sutton is charged with obstruction, a third-degree felony, and is scheduled for trial in March.

In the past, Jefferson County Sheriff Fred Abdalla said Jennifer Sutton told several people she wanted her husband killed.

Stay with NEWS9 for continuing coverage.

-Renee Cardelli & Allison Latos, NEWS9

Previous Stories: December 7, 2006: Police Officer Indicted In Connection With Shooting October 18, 2006: Two Charged In Connection With Adena Shooting Face Judge October 11, 2006: Police Officer Charged With Felonious Assault October 11, 2006: Policeman's Gun Used In Shooting October 10, 2006: Shooting Victim's Wife Charged With Obstruction October 10, 2006: Policeman Charged In Connection With Shooting September 25, 2006: Jefferson County Officials Investigate Shooting September 25, 2006: Man Shot While Standing In Driveway