What is behind the arrest of the Ukrainian oligarch Dmitry Firtash The arrest in the Vienna of the Ukrainian oligarch Dmitry Firtash puzzled many. Why did Firtash fall under the distribution, in the recent past, one of Gazprom's main business partners? Why, at the request of the American FBI? Why in March, at the peak of the Ukrainian crisis? And does his release mean € 125 million, that there will be no continuation?