His shipments bombs had caused a stir four years ago.
German authorities on Thursday arrested a 35-year-old man on suspicion of blackmailing the DHL express delivery group by sending parcel bombs.
The alleged blackmailer, who admitted ten extortion attempts, gave himself up to the authorities the day before, said the Public Prosecutor's Office and the Brandenburg police, the region surrounding Berlin where most of the facts had taken place.
No information on his motivations has been revealed.
If an arrest warrant has indeed been issued, the suspect has not been imprisoned at this stage, however, the judge taking into account the fact that he had surrendered himself and "circumstances of a private nature", indicated the Public Prosecutor's Office, without further details.
Against 10 million euros
In December 2017, the suspect sent a package to a pharmacy in Potsdam, Germany, demanding to receive 10 million euros in bitcoins from the German express delivery group DHL, failing which he threatened to send more.
The discovery of the explosive device in this pharmacy, near a Christmas market, had stirred up the country, awakening fears of an Islamist attack a year after the ram truck attack on a Berlin Christmas market ( 12 dead).
Authorities later announced that the suspected package found was intended to extort funds from DHL, not the Christmas market. Several parcel bombs attributed to the mysterious blackmailer had been sent, in particular to Brandenburg or Berlin, without causing any injuries.