IL SB1042

Re-enacts Section 5-8-1 of the Unified Code of Corrections to restore provisions invalidated by the Illinois Supreme Court's 1999 ruling in People v. Wooters that Public Act 89-203 violated the single subject clause of the Illinois Constitution.

Establishes sentencing rules for first degree murder, including discretionary natural life imprisonment for murders with exceptionally brutal or heinous behavior, and mandatory natural life imprisonment for certain aggravated circumstances including prior murder convictions, murders of children under 12, murders of multiple victims, and murders of peace officers or corrections employees.

Mandates natural life imprisonment for persons convicted of predatory criminal sexual assault of a child, aggravated criminal sexual assault, or criminal sexual assault when committed on or after specified effective dates.

Requires mandatory sentence enhancements of 15, 20, or 25 years (or up to natural life) when a firearm is involved in the offense, depending on whether the person was armed with, personally discharged, or personally discharged a firearm causing great bodily harm or death.

Establishes mandatory supervised release terms ranging from 1 to 4 years depending on felony class, with extended terms of 3 years to natural life for sexual offense and child pornography convictions.