In this viz, I've left the crimes ungrouped and you can select a crime and year to view the information. Click on a spot on the map and the data is highlighted in the table below.
Other than learning how to map - that is, just getting the points to show up in the proper locations - I also played around with the visual options, learning how to adjust the color and sizing of the map points. It's all incredibly easy. I can say that now.