Thats entirely possible and it probably wouldn't be seen to rebut the right-wing narrative that "cities are dangerous" to tell them "you should see how dangerous cities used to be."
You don’t have to compare urban to urban. In the early 90s, rate of violent crime in rural and suburban areas were far higher than what you now see in Chicago and Milwaukee. Not a surprise when you look at figure 1 of https://www.bjs.gov/content/pub/pdf/cv19.pdf