KINGMAN, Ariz. — A body was been found buried in concrete and dirt in the backyard of the former home of a 63-year-old Kingman man arrested in July after he confessed to killing a friend, authorities said.

An autopsy is pending to determine the identity and cause of death, but the Mohave County Sheriff’s Office said Tuesday the body recovered Monday night after digging with the use of a jackhammer and other equipment is believed to be that of John Holland, 65.

Richard Joseph Polaski is charged with premeditated first-degree murder.

Authorities said Polaski admitted to a homicide while speaking with police in Laughlin, Nevada, and that he then told investigators he gained access to Holland’s investment account after killing Holland in 2015.

The Mohave County Public Defender’s Office did not immediately respond to a request for comment on the allegations against Polaski.

The Kingman Daily Miner ( ) reported that police in Laughlin contacted Polaski on July 9 after he attempted to kill himself by overdosing on over-the-county pills while in the Colorado River town.

A search warrant affidavit said Polaski told police “that he tried to kill himself because he had killed one of his friends, John Holland, 65, on or about the 27th day of July, 2015, and that his body was buried in the backyard of East Lass Avenue.”

Polaski stated “that during an argument with (Holland) at his residence, he had stabbed him in the stomach several times until he died. (Polaski) then disposed of Holland’s body in a hole in his (Polaski’s) backyard located on Lass Avenue, then covered it with several feet of concrete,” according to the affidavit.

Polaski in April sold his residence with the body still buried in the backyard, he told investigators.

Chief Sheriff’s Deputy Rodney Head said authorities wanted to give the new homeowners advance warning and proper respect for their property.

VIAThe Associated Press
The AP is one of the largest and most trusted sources of independent newsgathering. AP is neither privately owned nor government-funded; instead, as a not-for-profit news cooperative owned by its American newspaper and broadcast members, it can maintain its single-minded focus on newsgathering and its commitment to the highest standards of objective, accurate journalism.