Murky Slovak businessman Marian Kocner is accused of ordering the murder to prevent the journalist from exposing further his activities.
The go-between is the only one out of a total of five defendants in the high-profile gangland killing who has
The suspect in question was previously believed to have been the driver of the suspected hitman.
The charged businessman is known to have threatened the journalist a number of times.
Operation Pollino has become the largest police operation against a mafia clan ever carried out in Germany.