Esteban Miranda, who beat the Logan Square boy into a coma, was sentenced to 23 years in prison.
Police said the men were shot after pointing guns at officers.
Jedidiah Brown dodged bullets Monday, then brought the gunman to the scene of another shooting Tuesday.
The South Side native, in town for an art exhibit, talked rap murders, drill music and social media.
Family and supporters of victim John Costulas breathed a sigh of relief Thursday as the verdict was read.
An interrogation video was played during the trial of Brandon Hinton, charged with killing John Costulas.
The trial in the murder of a developmentally disabled man near the Howard Street L stop began Tuesday.
MARK KONKOL: More detectives and cops on the beat are helping crack the "no-snitch" code, police say.
Lawrence Sellers and Donald Murphy survived bullet wounds but face emotional injuries in the aftermath.
The St. Sabina pastor timed the rally for the season that typically sees the most murders in the city.
The first lady will talk to students during their Wednesday visit to Washington, D.C., officials said.
MARK KONKOL: Cabrini missionary Jim Fogarty thinks reformed gang members could make walk to school safe.
MARK KONKOL: Ebony Ambrose's last chat with son reminds her she raised a respectful young man.
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