Escorted by police, he was driven in a car from the airport, according to the newspaper, which publishes a picture allegedly showing Jonas Falk in the back seat.
Falk is suspected of being behind a blackmail scheme against Joachim Kuylenstierna, former CEO of the listed investment company Fastator.
In addition to gross blackmail, he is suspected of aiding and abetting gross arson after a fire attack targeted at one of Kuylenstierna's colleagues.
In total, eight people were charged at the beginning of September. Prosecutor Anna Stråth then described the blackmail attempts as extremely serious, where Kuylenstierna received threats and demands for payment of 100 million kronor in the autumn of 2023.
Among those charged are two people linked to the criminal Vårbynätverket in southern Stockholm, as well as a lawyer.
Jonas Falk was arrested in Spain in August and has been detained awaiting extradition since then. Charges against him are expected later.
The Swede was identified in 2010 as the mastermind behind the large drug bust "Operation Playa", and was sentenced to 18 years in prison for extensive cocaine smuggling from Colombia, but was acquitted in 2014 by the court of appeal.
TT has unsuccessfully sought prosecutor Anna Stråth.
