Since no one have answered your question. This is difficult to answer since I'm not from the Chi.

Create a task force to root out more corruption within the political system and law enforcement. Gather intel on the current conflicts between street organizations within high crime districts and analyze the root cause of the rivalry; Business , Domestic, or Both. Ban all active gang members from using social media networks to antogonize rivals ( Yeah i know wishful thinking) Afterwards reach out to the families and community groups to discuss and introduce a neighborhood alert network for each district. It will be a combination of twitter & information gathering in case rumors or word of mouth of ambushes/retaliations. Invest in the low income areas to increase employment or community outlets. That's all I could think of for now.