He grew up the son of a New York city doorman, and was brought to Chicago as an outsider. Elizabeth Brackett takes a look back at how Patrick Fitzgerald got here on Chicago Tonight at 7:00 pm.

View highlights from Fitzgerald's career as U.S. attorney in the timeline below.

Michell Eloy, Michael Lipkin, Meredith Garretson and Yasmin Rammohan contributed to this report.