The total number of murders in Chicago peaked in 1974 , with 970 murders when the city 's population was over 3 million people ( resulting in a murder rate of around 29 per 100,000 ) , and came close to peaking again in 1992 with 943 murders , resulting in a murder rate of 34 per 100,000 .
The total number of murders in the city peaked in 1974 , with 970 murders when the city 's population was over 3 million people ( resulting in a murder rate of around 29 per 100,000 ) , and came close to peaking again in 1992 with 943 murders , resulting in a murder rate of 34 per 100,000 .