Avis Hill, 26, of Chicago.

A developmental center resident was arrested after he allegedly bit two staff members in the head and struck two others in the head at the Ann Kiley Center in Waukegan.

Avis Hill, 26, of Chicago, was charged with one count of aggravated battery, a Class 3 felony, and five counts of battery, a Class A misdemeanor.

The Illinois State Police Division of Criminal Investigation Zone 1 responded around 4:45 p.m. on January 3 to Ann Kiley Developmental Center, 1401 West Dugdale Road in Waukegan.

A state police spokesperson said investigators were called for a report of employees battered by a patient at the facility.

The facility provides services and support for adults with intellectual disabilities.

Court documents said Avis caused great bodily harm to a staff member after striking them in the head.

A second staff member suffered bodily harm after being bitten in the head by Avis, the court documents said.

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The police spokesperson said the two employees suffered injuries that were not life-threatening.

A third staff member was also bitten in the head and a fourth was struck in the head, court documents said.

The Lake County State’s Attorney’s Office approved the six charges against Hill following a thorough investigation, the spokesperson said.

Hill was arrested and transported to the Lake County Jail for processing.

The Lake County State’s Attorney’s Office did not file a petition to detain Hill pending trial.

Lake County Judge Raymond Collins released Hill from custody during an initial court hearing last week.

Hill is scheduled to appear in court again on March 6 for a status of preliminary hearing.