WELCH, W.Va. — Authorities in West Virginia said three people have now been charged with murder after the remains of a Minnesota man were found in McDowell County.

News outlets report 31-year-old Amanda Michelle Naylor McClure, 32-year-old Anna Marie Choudhry and 55-year-old Larry Paul McClure Sr. were charged with murder and conspiracy in the death of John Thomas McGuire.

Choudhry and Amanda McClure were initially charged with concealment of a deceased human body. Larry McClure was originally arrested for failing to register as a sex offender.

West Virginia State Police Trooper K.M. Saddler said the three related suspects knew McGuire. He said they planned McGuire’s killing and “willfully concealed the remains” in a shallow grave at Larry McClure’s residence.

A motive for the slaying wasn’t immediately released.