A Texas woman accused of killing her 6-year-old son in New Hampshire and disposing of his body in rural Maine will plead guilty to killing him, court officials said.

Forty-two-year-old Julianne McCrery will plead guilty to second-degree murder in the death of her son, Camden Hughes.

Her lawyers did not immediately return messages left by The Associated Press. McCrery pleaded not guilty in May and has since waived all other court appearances.

A Rockingham Superior Court clerk confirmed McCrery has filed a notice of intent to plead guilty and will be sentenced to 45 years to life in prison. No date has been set for her to formally enter her plea.

The discovery of Camden's body under a blanket on a dirt road in South Berwick, Maine, on May 14 launched a nationwide effort to identify him. Even as that effort was under way, McCrery called his Irving, Texas, elementary school daily to report him absent.

Camden died of asphyxiation, according to a medical examiner. He and his mother had stayed in a New Hampshire motel the weekend before his body was discovered.