The suspect was arrested on 17 January, only two days after the Verviers house searches. It is said that the suspect had contact with an alleged jihadist who is behind bars in a Belgian prison, calling him 3 or 4 times.
The man that has been handed over to the Belgian authorities admits he had contacts, but claims that this was only because he knew the other man, and that the contacts have nothing to do with terrorism. He agreed to be extradited, in order to prove his innocence to Belgian investigators.
A second suspect that was arrested in Athens on the same occasion, turned out to have nothing to do with terrorism.