Authorities investigating death at Lake County jail

A man being held in maximum security at Lake County jail died Wednesday after being found unresponsive in his cell, authorities said.

The 31-year-old Park City man was found unresponsive and alone in his jail cell shortly after 11 a.m. Wednesday, according to a news release. He was treated with an automated external defibrillator before Waukegan paramedics arrived to continue resuscitation efforts and take him to Vista East Hospital, authorities said. He was pronounced dead at the hospital.

The Lake County Major Crime Task Force is investigating the man's death, which is protocol. An autopsy is scheduled for Thursday.

Authorities did not release the man's identity Wednesday because they had not confirmed whether his family was notified.

The man was jailed in July on felony charges, authorities said. In August, a Lake County judge found that the man was unfit to stand trial, and he was ordered to remain at the jail until the Illinois Department of Human Services determined appropriate placement or treatment options, authorities said.

The man had been put in the administrative segregation unit, a maximum-security section of the jail, because of his disruptive behavior and threats to harm other inmates, authorities said. That unit of the jail houses only one inmate per cell.