When Peter Faber joins Jan Pawlak and Rosa Herzog early in the morning, the forensics team has almost finished their work. Tram driver Hamza Arkadas was stabbed during his night shift. There are no witnesses, but the images from the surveillance camera show how Arkadas was first provoked and then attacked by a young passenger. The perpetrator showed his face offensively into the camera before fleeing, but the recordings are... see more