Darren O’Brien drew fire from special prosecutor for not charging Richard J. “R.J.” Vanecko

Questions about nephew’s involvement set off scramble inside Daley’s City Hall.

Top cops told special prosecutor they didn’t know it was a crime to lie to police.

Mayor offers sympathy, awaits recommendation on cops named by special prosecutor.

Special prosecutor decided there wasn’t enough evidence to convict them.

Ten witnesses testified only after getting immunity from prosecution.

Here’s a look at some of the key numbers associated with the case.

Report: He knew “shortly after the incident” that his nephew was involved in the confrontation.

Special prosecutor Dan K. Webb released a report this morning on the handling of the case.

It’s expected to shed light on whether clout kept police, prosecutors from filing charges.