The serial murderer of taxi drivers sentenced to life imprisonment to whom the prison authorities "gave holiday" ran away to India

To India the prison authorities gave 20 days of holiday to the criminal condemned for lifelong term. That, naturally, ran away. Initially the man was condemned for murder of seven people. However new details of its crimes became known later. It appeared that actually it killed hundred people! The man called a taxi, and then killed drivers. It fed their bodies to crocodiles, and cars of the victims - sold. All these details became known the general public after the criminal ran away...