CHICAGO (CBS) -- Police on Thursdasy apprehended a person of interest in the murder of two workers at Navy Pier earlier this week ... Lamont Johnson, 51, of Lansing, and Peter Jennings, 47, of Chicago, both were shot in the head and were taken to ...

Chicago Area Three detectives released surveillance images of the suspect they believe shot and killed Lamont Johnson, 51, and Peter Jennings, 47, at Navy Pier- 600 E. Grand Avenue- on Tuesday.

The Chicago Police Department has released three surveillance images of the man they believe shot and killed two workers at Navy Pier Tuesday. At around 1:20 p.m., police believe the man entered a loading dock area on the north side of the pier.