Kankakee Times

There are two inmates sentenced in Kankakee County set to be released from jail during the week ending June 28, according to the Illinois Department of Corrections.

In total, two men are set to be released over this period. William Heintz, who served the longest sentence among them, spent two years incarcerated for an offense recorded as 'aggravated domestic battery involving strangulation'.

Most prison inmates are released on some condition of supervised monitoring upon reentering civilian life. This monitoring can last from one year to the rest of someone’s life.

According to the Illinois Department of Corrections, Illinois spends about $45,828 a year per incarcerated person. In a 2023 study by the Prison Policy Initiative, the state's incarceration rate was at 433 per 100,000, higher than every industrialized country, except the United States. When compared with its surrounding states, Illinois was the lowest. Kentucky and Missouri have rates over 700 per 100,000.

Another study by the Prison Policy Initiative highlighted that the number of unconvicted individuals was more than two times higher than that of convicted individuals, possibly one of the leading causes of prison population growth in the state.

Name	Offense	Supervised Release Date	Holding Facility
Kenneth W. Mack Jr.	Violent order	06/23/2025	Robinson Correctional Center
William Heintz	Aggravated domestic battery involving strangulation	06/27/2025	East Moline Correctional Center