In 1985 a passenger boarded a train to find the carriage was covered with blood … but there was no body around. An extensive search of the railway tracks later that night, uncovered a horrific tragedy. And their main suspect was soon revealed to be a 15 year old boy.

Many thanks to Mark for this suggestion!

SOURCES:

https://www.dailyrecord.co.uk/news/scottish-news/the-train-killer-960426

https://www.thefreelibrary.com/RAILWAY+PSYCHO+IS+BACK+BEHIND+BARS%3B+Freed+killer+is+locked+up+for...-a0173501289

http://www.blackkalendar.nl/c/6905/Jack%20Roy

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.