The Serial Killer Dentist of St. Louis, Missouri

Dr. Glennon Engleman was a Dentist in St. Louis, Missouri living what everyone thought was a normal life. What his patients didn't know, is that the man that had his literal hands in their mouths day in and day out...was a cold-blooded murderer.

Sources:
James Bullock: https://www.newspapers.com/article/st-louis-post-dispatch-bullock-murder-a/33785917/
Peter Halm: https://www.newspapers.com/article/st-louis-post-dispatch-dentist-englema/33811267/
https://www.newspapers.com/article/st-louis-post-dispatch-peter-joseph-hal/9744758/
Sophie Barrerra: https://www.stltoday.com/news/archives/jan-14-1980-st-louis-car-bombing-is-the-work-of-the-notorious-southside-dentist/article_439cb546-1d2d-544f-9a49-847fb62b2be7.html

https://fox2now.com/news/true-crime/st-louis-serial-murderer-used-charm-for-insurance-fraud-over-22-years/

Barbara Boyle: https://www.upi.com/Top_News/US/2009/10/17/Wife-released-after-serving-25-years/69931255816759/