A plan to shut down a human remains recovery operation overnight in north Kingman changed when a body part was discovered shortly after 6:00 p.m. Chief Mohave County Sheriff’s deputy Rodney Head said the medical examiner was called back to the scene and the recovery effort was to continue well into Monday evening.

Mohave County public works and sheriff’s office personnel had spent more than eight hours cutting and busting up concrete in the backyard of a home in the 3700 block of Lass Avenue. The work was the result of a July 9 confession by John Polaski, 63.

Polaski told authorities he murdered his friend John Holland, 65, in June of 2015 and buried him in a hole before encasing him in concrete. Polaski’s confession came after a failed suicide attempt in Laughlin.

Polaski is held in the county jail on a first degree murder charge. An investigation continues into the possibility of an accomplice in a scheme to take control of Holland’s considerable assets, including his trust, real property, vehicles and other assets.