Laquan mcdonald
Chicago police maintain they had nothing to do with a mysterious gap in the footage.
Brandon Smith says he kept pushing, even after his FOIA request was denied.
Rahm Emanuel said it was time for "fresh eyes and new leadership."
Bail was set at $1.5 million, of which 10 percent had to be posted.
WHAT'S HAPPENING
Jabari R. Dean, 21, of Chicago, threatened to kill 16 white male students or staff at the school.
Jackson called for "bold comprehensive change" in the Chicago PD and in the criminal justice system.
"The pain that we're feeling in neighborhoods now needs to be felt on Michigan Avenue."
"This is going to give an opportunity for all of Chicago to come out, demonstrate their outrage and their anger in a nonviolent way."
