assalam o alaikum brotherWell not that we know of? I think PTI government doing some enquiries on its own to see if there are any clues for their involvement? This should tell you how resolved Imran Khan is to solve this issue.
see my first comment i appreciated for this step.
i think imran khan is not doing some inquiries but he knows they are terriorist. before inquiries no one get bann, govt bann any organisation or people when they have complete proof.