Here's a data visualization by American Public Media's In the Dark podcast: https://www.apmreports.org/story/2016/10/18/in-the-dark-8
Season 1 of this podcast focused on the investigation of a child abduction in Minnesota and this episode in particular zoomed out to show what the investigating agency's track record was for solving crimes. Turns out it's not good!
The reporters on this story used something like StoryMap JS to highlight some of the high-profile crimes that went unsolved over the years and where they occurred in relation to the child abduction that is the focus of the podcast.
They used a line graph to show how the investigating agency's clearance rate has compared to others statewide over the years and on another line graph they showed how clearance rates went up or down depending on who was sheriff at the time.
This last visualization interested me the most because we in Texas also have sheriffs and these clearance rates can be hard for the average voter to find and digest so they can truly hold them accountable.