HARTFORD, Conn. -- A man charged in the killings of a woman and her two daughters during a 2007 home invasion is back in prison, after having been hospitalized in what authorities said was a medically induced coma, a spokesman said Tuesday.

Steven Hayes was returned to the MacDougall-Walker prison in Suffield on Tuesday morning, Correction Department spokesman Brian Garnett said.

New Haven Superior Court Judge Jon Blue said Monday that Hayes' lawyer told him that Hayes was found unresponsive in his cell Sunday and was in a medically induced coma at the University of Connecticut Health Center.

Authorities have declined to confirm a report by The Hartford Courant that Hayes overdosed on medication. They cite a court gag order in the case as well as the confidentiality of medical records.

"The circumstances will be carefully reviewed and examined by the Department of Correction," Chief State's Attorney Kevin Kane told The Associated Press on Tuesday. "Any public discussion of this matter has to be limited as a result of the court order."

Joshua Komisarjevsky and Hayes are charged with capital felony murder, assault, sexual assault, kidnapping, burglary, robbery, arson, larceny and risk of injury to children. Hayes was charged in the sexual assault of Jennifer Hawke-Petit, Dr. William Petit's wife, and Komisarjevsky in the sexual assault of Michaela, their daughter.

Police said Hayes and Komisarjevsky entered the Petits' Sorgum Mill Drive home during the night. They said once inside, they beat and bound William Petit and left him in the basement. Police said the pair then terrorized Hawke-Petit and her daughters, Michaela and Hayley, for hours.

Police said they surrounded the home after Hawke-Petit was taken by one of the suspects to a bank and made a withdrawal around 9:30 a.m. Hawke-Petit was able to communicate to the teller that she and her family were being held hostage in their home, authorities said. The teller contacted police and police said Hawke-Petit was taken back to the home

Police said Komisarjevsky and Hayes set the house on fire before leaving the scene. They were arrested while attempting to flee, Cheshire police said.

The medical examiner ruled Hayley and Michaela's cause of death to be from smoke inhalation and Hawke-Petit's to be from asphyxiation.

Hayley was 17 at the time of her death and had recently graduated from Miss Porter's School in Farmington. She planned to attend Dartmouth College. She also ran a charity called Hayley's Hope, which raised more than $50,000 to fight multiple sclerosis, from which her mother suffered.

Michaela was 11 years old and loved to cook. She was a member of her school's student council and played the flute.

Hawke-Petit was 48 years old and was a nurse and director of the Student Health Center at Cheshire Academy.

Dr. Petit and his wife were married for 22 years.