That massacre was great play. Mr paras was financer/producer. Mr gyanendsra- i think he was not involved directly but he approved silently.  Royal army then chief was main Actor, I do believe gun deal was the reason then army chief involvement.  "Anybody can go crazy for power, love and money"-this theory was utilized for framing this bloody drama.

Gyanendra left Narayanhity because he knew this would hapen again with him too.