Some of the killers we've talked about had terrible childhoods filled with abuse and unimaginable grief. Some have convinced themselves that their potential gains, maybe money or protecting a secret, justify their crime. And while none of this justifies murder, it can helps us try to better make sense of a horrible tragedy. But there is no such motive or sympathetic backstory for the man who brutally killed Karen Buckley, a 24 year old Irish nurse and master's student, who was enjoying a night out with friends in Glasgow in April 2015. As the judge said in his sentencing, Alexander Pacteau, was a "callous and calculating" murderer who took the life of a young woman who just happened to be in the wrong place at the wrong time.  Support us! Want ad free listening? Patreon - https://patreon.com/crimesaladpodcast Sponsors: Raycon Go to BUYRAYCON.com/crimesalad today to unlock exclusive deals up to 20-percent off your Raycon order!  Warby Parker Try 5 pairs of glasses at home for free at warbyparker.com/crimesalad SimpliSafe Get 40% off your new home security system by visiting SIMPLISAFE.com/crimesalad  LightStream Subject to credit approval. Rates range from 4.98% APR to 19.99% APR and include 0.50% AutoPay discount. Lowest rate requires excellent credit.  Terms and conditions apply and offers are subject to change without notice. Visit LIGHTSTREAM.COM/CRIMESALAD for more information.  Follow us! Merch - http://www.crimesaladpodcast.com/shop Instagram - https://www.instagram.com/crimesaladpodcast Twitter - https://www.twitter.com/crimesalad Facebook - https://www.facebook.com/crimesaladpodcast RATE US - https://podcasts.apple.com/us/podcast/crime-salad-podcast/id1457141569 Learn more about your ad choices. Visit megaphone.fm/adchoices