Good news! Uncle Hugo's (science fiction/fantasy only book store) will be reopening later this year. Address is 2716 E. 31st St, Minneapolis. If you want further notifications, here's a link to add yourself to the mailing list.
http://www.unclehugo.com/prod/mailTo.shtml
The newsletter doesn't say anything about Uncle Edgar's (mystery/thriller specialty book store).
You can still buy books via Abe Books using this link
https://www.abebooks.com/uncle-hugos-sf%2funcle-edgars-mystery-minneapolis/3358938/sf and click “View this seller’s items”. If you want more than one book, order directly from Uncle Hugos at UncleHugo at aol.com to save on shipping.