Day 23 of the Crimetober Series is about the murder of Doctor Barnett Slepian’s murder which occurred on October 23, 1998.

I apologize for the late release 

Sources 

https://www.history.com/this-day-in-history/october-23-video 
https://www.history.com/this-day-in-history/an-abortion-performing-doctor-is-murdered 
https://pmc.ncbi.nlm.nih.gov/articles/PMC1169315/ 
https://www.washingtonpost.com/wp-srv/national/longterm/abortviolence/stories/sniper.htm 
https://buffalonews.com/news/local/the-murder-of-barnett-slepian-25-years-later/collection_7fffe252-7018-11ee-974a-ff166aeeb020.html