We're finally concluding the last bit of Dennis Nilsen's messed up case. 12 victims, 3 different police encounters, 2 different home before he finally gets cause and learns a very important lesson in plumbing.

Sources:

https://www.dailyrecord.co.uk/news/scottish-news/serial-killer-denis-nilsen-recorded-24798473

https://www.the-sun.com/news/1478375/dennis-nilsen-victims/

Book:

History of a Drowning Boy - Dennis Nilsen

Music:

https://www.silvermansound.com