Re: Cut off their internet: problem solved.
no film has previously been made featuring the murder of a current head of state
I find that extremely difficult to believe.
Let's see: Hot Shots! Part Deux (1993) features the murder of Saddam Hussein (president of Iraq 1979-2003), and if memory serves so did the first installment. Death of a President (2003) describes the assassination of George W Bush during his presidency (2001-2009).
There - that's two (or three) counterexamples. And I bet there are a whole frickin' bunch of less-well-known ones. Do you really think that no art student has ever made a film about the killing of a sitting head of state? Why people feel the need to traffic in this sort of implausible certainty I do not understand. Just think about that claim, and how very improbable it is.