It has also been revealed for the first time that Mr Kempson raped another British tourist eight months before he murdered Ms Millane and has also been convicted of a series of offences against a former partner.
This report contains CCTV footage that some viewers may find disturbing.
SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews
Follow us on Twitter: https://twitter.com/skynews and https://twitter.com/skynewsbreak
Like us on Facebook: https://www.facebook.com/skynews
Follow us on Instagram: https://www.instagram.com/skynews
Sky News videos are now available in Spanish here/Los video de Sky News están disponibles en español aquí https://www.youtube.com/skynewsespanol
For more content go to http://news.sky.com and download our apps:
Apple https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8
Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB