Well part of Milan is in Monroe County and part of it is in Washtenaw County... the prison complex is actually in Washtenaw... but still very close to Monroe County... lots of residents worked and still work there.
My wife actually worked for many years at the bank where the armed robbery happened that ended in the hanging of one robber. A bystander was shot and killed and therefore it became a capital crime.
I've mentioned this event here on MT before... when I have time I'll try to find the posts and link them here.
Part of the story I remember from local 'lore' was the part about the local dentist who shot the two robbers as they tried to escape. He was sitting in his 2nd floor office cleaning his deer rifle when he heard all the commotion in the street below him. He loaded his rifle, took aim out the window and shot both robbers. One was killed and the other was injured enough to allow him to be caught later. This all happened while the robbers were attempting to 'carjack' people in the street. I wonder if this would have been the first attempt at carjacking in Michigan?
Another episode I've heard many times from local lore... Ira Smith was the local very popular sheriff... not sure if he was popular before this event or if this is what made him popular... on the day of the execution the sheriff was supposed to stand on the gallows and be the official county witness to the execution. When it came time to "spring the trap" under the condemned robber/murderer the official hangman hesitated... said he couldn't do it!!! Immediately Sheriff Smith stepped forward, grabbed the lever and said something along the line of "well I can do it, it's no different than killing a pig" and with that he dispatched the condemned. Not sure that's info you'll find in any official history books but I've heard it too many times from too many sources for it not to be somewhat factual.
Here's a very thorough article from the Midland Daily News on the robbery and subsequent events:http://www.ourmidland.com/accent/article_cbf7e556-6728-11e2-bcc0-0019bb2963f4.html