Joanna Dennehy

One of three female killers in the UK to get a whole life sentence. She murdered three med in 10 days and attacked two others. Dennehy grew up in an average family, before falling in with a crowd that got her addicted to drugs and alcohol. She purportedly liked being in jail and after her first murder, she stated that she had the taste for it. Remorseless and callous, she's even attempted to seduce guards in prison in order to escape as well as created a suicide pact with a girlfriend. At this time she remains locked up in a UK prison, where she will serve until she passes away.

Sources:

https://vocal.media/criminal/the-case-of-psychopathic-serial-killer-joanna-dennehy

https://www.cosmopolitan.com/uk/reports/a69643627/joanne-dennehy-now/

https://www.crimeandinvestigation.co.uk/crime-files/joanne-dennehy

https://www.bbc.com/news/av/uk-26159909