There was no robbery here. This was just gratuitous violence against Infidels.
“The attack on Christmas Eve: Nanna Skovmand and her boyfriend were beaten with chains,” by Louise Uberg, Nyhederne (translated), December 26, 2014 (thanks to Yosi):
What was supposed to be one of the year’s coziest evenings ended for the couple Nanna Skovmand and Mads Schøllhammer as one of the worst experiences ever.
The couple was at midnight on the way home from Christmas Eve when they were suddenly attacked by a group of young men. The attack was so rough that the couple had at Rigshospitalet’s trauma center, where they spent 10 hours.