Karen Chisholm
Another series I'm slow off the mark with, unfortunately.
From the Blurb:
A Greek gangster arrives in Stockholm, only to be murdered in a macabre fashion at Skansen zoo, his body consumed by animals.
As the Intercrime Unit – a team dedicated to solving international violent crime – investigate what brought him to Sweden, eight Eastern European women vanish from a refugee centre outside of the city while an elderly professor, the tattooed numbers on his arm hinting at his terrible past, is executed at the Jewish cemetery.