The 32-year-old man’s lawyer says his client has admitted to being guilty of the kidnapping and that money was the only motive, but would not comment on any accomplices.
The man was taken into custody Thursday night—he has lived in Sweden for several years and speaks fluent Swedish.
Investigators are also due to travel to Vienna this week, to question a man who has been arrested in the case. The media has reported that he was not involved in the kidnapping but had claimed to have carried it out in an attempt to extract money from the Bengtsson family.
Fabian Bengtsson is the heir to and managing director of Siba, a popular chain of consumer electronics stores across the Nordic countries.