 Ultimately, Kaplan concludes that the Turkish military was aware that the Americans did it, but covered it up to maintain good relations.Recently uncovered evidence suggests that his death and that of Mumcu may be related to the shadowy Ergenekon network.Both Bitlis and Mumcu were investigating how Jalal Talabani, one of the Kurdish leaders of northern Iraq, came into possession of 100,000 firearms belonging to the Turkish Armed Forces.