Together, these 5 cities on the Great Lakes summed 896 homicides in 2014 per FBI. The red marker is Gary, Indiana:
Lake County Sheriff John Buncich attributed the violence to gangs fighting over drug customers, some coming in from out of town, mostly to buy marijuana. He said gangs sometimes spin off and form smaller factions, battling within just a few blocks and complicating police work.
"The weaponry they are using is ridiculous," Buncich said. "The amount of firepower is ridiculous."
Gary guns also show up at 19% of Chicago murder scenes.
Presumably, Chicago traders acquire Gary, Indiana guns for Sinaloa drugs and/or proceeds from the same?
original data source:
FBI Table 6 2014