Libby Squire killer Pawel Relowicz prowled streets in Scream mask before murdering student
![Libby Squire killer Pawel Relowicz prowled streets in Scream mask before murdering student](https://i2-prod.mirror.co.uk/incoming/article23380886.ece/ALTERNATES/s615/2_Libby-Squire-death.jpg)
Humberside Police's investigation into the disappearance of Libby Squire is the focus of Channel 5's Killer at the Crime Scene - twisted butcher Pawel Relowicz was found guilty of raping and murdering the student