MIDDLETOWN, Ohio (WDTN) — A man accused of helping a Middletown mother dispose of her son’s body in the Ohio River pleaded guilty to four felony charges Tuesday.

WLWT reported that James Hamilton, 42, the boyfriend of Brittany Gosney, 29, pleaded guilty to kidnapping, gross abuse of a corpse and two counts of child endangering.

In March, Hamilton was charged with three counts each of kidnapping, abduction, endangering children, tampering with evidence and gross abuse of a corpse.

Gosney, who was charged with killing her 6-year-old son, James Hutchinson, and dumping him in the Ohio River, pleaded guilty to two counts of endangering children and one count of unclassified murder on Monday, August 16. As a part of her plea deal, all other charges were dismissed, according to court documents.

Gosney is facing a mandatory life sentence with parole eligibility after 15, 18 or 21 years.. She will be sentenced on Monday, September 13 at 8:30 a.m.

According to Middletown Police, Gosney intended on abandoning three of her children and drove them to Rush Run Wildlife area in Preble County on Feb. 27 at 3 a.m. As Gosney attempted to leave, James tried to get back in the car. Police said Gosney sped off and dragged James. Gosney reportedly told police she went back to get him and he was dead. Police said she put his body, along with her two other children, back in the car and drove home to Middletown.

The next day, police said Gosney and Hamilton threw James’ body into the Ohio River near Lawrenceburg. Several attempts have been made to locate James Hutchinson’s body near the Ohio River, but it has not been recovered.

Gosney told police that Hamilton was pressuring her to get rid of her children. Investigators believe it was her intention to leave all three children at the park.