Rep. Bob Morgan (D-Deerfield) speaks with U.S. Rep. Brad Schnieder (D-Ill.) after visiting with Vice President Kamala Harris in Highland Park Tuesday. [Ben Szalinski/The Daily Line]

Illinois imposes more layers of review over gun purchases than most other states with its background checks, firearm owner identification (FOID) card requirements and “red flag” laws designed to keep guns out of the hands of people who may harm themselves or others.

However, Monday’s shooting that killed seven and injured more than 40 people at the Highland Park Independence Day parade is sparking reviews of the strength of the state’s gun laws after authorities revealed the shooter obtained a FOID card and legally purchased weapons despite prior contact with police.