It was an effort to promote peace in their communities.
CEASEFIRE hosted a summit called "Searching for Peace" at Malcolm X College.
Members of about ten street gangs participated in the town hall-style meeting.
They came from several Chicago neighborhoods including Englewood, Roseland and West Humboldt Park.
Organizers say the goal is to bring the gang members together to work on a peace process.
"They can learn different techniques and ways to problem-solve - ways to mediate conflicts and learn that violence is a learned behavior, and you can un-learn violent behavior if people would just bring people together," said Tio Hardiman of CEASEFIRE.
CEASEFIRE says it is working hard to keep the Chicago homicide rate under 400 victims this year.