A Chicago police officer shot a 14-year-old boy in the back. But another man – not the officer – was charged with murder.
Reporting sparks clemency petition
How Chicago rushes to clear police in shootings.
Journalism students help prove police shooting of Seneca Smith did not go down as officers claim.
Impact and reaction
From shopping malls to violent street corners, security guards operate with little scrutiny.
First, police said 19-year-old Deon Williams shot at them. Then they said he didn't.
