Its the most dangerous it's been since late 90's
This year is now on track for highest 4th highest homicides since late 90's (Last year was highest)
One could argue it may be as violent or worse now given the advances in medical care, quicker medical response and especially emergency care since 90's when looking at how many survive wounds that likely would have been fatal in 70's/80's/90's
To date this year (And these are #'s that could be verified as city isn't well known for providing accurate data)
Shot & Killed:
490
Shot & Wounded:
2274
Total Shot:
2764
Total Homicides:
540
Also, it could be argued violence/crime is now more widespread thru city (As you noted) with downtown and red line having some of the most they have ever had while in past it could be argued it was isolated mostly to certain parts of city (For instance Cabrini Green, etc, etc before they were torn down)
The fact city is encrypting all police scanners in attempt to block trackers and others from listening in raises red flags on future #'s being reported as city will control the flow of information on crime