PakistanDetained US citizen from Peshawar was Blackwater chief in KPNasir KhanMarch 6, 2011 by Nasir KhanMarch 6, 2011 Peshawar:Â US citizen Aaron Mark DeHaven, who was arrested from Peshawar, is Blackwater’s chief in Khyber Pakhtunkhwa and Fata region, sources said. The revelation came...