MOUND CITY — A Pittsburg man today pleaded no contest to two counts of first-degree premeditated murder for the 2016 deaths of two family members, Kansas Attorney General Derek Schmidt said in a release.

David Patrick McNabb, 32, pleaded no contest to the two counts of first-degree premeditated murder as well as one count of felony theft and one count of interference with law enforcement. District Court Judge Mark Ward accepted the pleas and found McNabb guilty of the crimes.

The charges stem from a Nov. 12, 2016 incident in which the Kansas Bureau of Investigation was requested by the Linn County Sheriff’s office to investigate a crime scene connected to two missing persons from rural Pleasanton, according to a media release.

The missing persons, Betty McNabb, 87, and her son, Kenneth McNabb, 65, both of Pleasanton were reported missing by family members late the evening of Nov. 11, 2016. David McNabb is the nephew of Kenneth McNabb.

The bodies were discovered near a house in rural Crawford County near Pittsburg on Nov. 15, 2016.

Sentencing is scheduled for September 5 at 9:30 a.m. in Linn County District Court.

First-degree murder is an off-grid person felony and carries a mandatory sentence of life in prison without the possibility of parole for 25 years. Depending on how the sentences are structured, McNabb could spend the next 50 years in the custody of the Kansas Department of Corrections.

The case was investigated by the Linn County Sheriff’s Office, Crawford County Sheriff’s Office and Kansas Bureau of Investigation. Assistant Attorneys General Jessica Domme and Jason Oxford of Schmidt’s office are prosecuting the case.