In the 1970s, hitchhiking was an economical and common way to get from point A to point B. Soon though, young women in the Boston area began disappearing and were found, days later, strangled in random places. Was one person acting alone or was a group out to hurt female college students?
Sources:
https://www.npr.org/2015/08/09/430079847/thumbs-up-then-and-now-hitchhiking-stories-from-the-road
Commonwealth vs. Anthony J. Jackson
https://www.nytimes.com/1973/04/13/archives/massachusetts-man-indicted-in-slaying.html
https://www.nytimes.com/1973/02/05/archives/body-of-coed-is-found-near-boston.html
The World Encyclopedia of Serial Killers: Volume Two, E–L By Susan Hall
https://www.thecrimson.com/article/1973/2/14/the-hitchhike-murders-pbbebllen-reichb-was/