Sky speaks to the employer of a Polish man who helped fight off the London Bridge knifeman.
Lukasz grabbed a narwhal tusk from where he was working and suffered five stab wounds as he fought Usman Khan.
SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews
Follow us on Twitter: https://twitter.com/skynews
Like us on Facebook: https://www.facebook.com/skynews
Follow us on Instagram: https://www.instagram.com/skynews
For more content go to http://news.sky.com and download our apps: