The first lady comforted friends and classmates of the slain teen before a funeral service Saturday.
Michelle Obama, Rahm Emanuel attend the service as calls to end violence ring out.
At Hadiya's viewing, her godfather says teen provides a "voice for all these people who have passed."
Thousands expected for the slain teen's funeral Saturday.
Get our daily DNA Open House
Thank you for signing up!
Would you like to sign up for additional newsletters?
Thank you for signing up for additional newsletters.