Anyone can kill. Children kill by accident- animals kill for food- men kill to satisfy passions and sate desires they foolishly attempt to stifle under social norms no one needs, but all cling to like helpless fools.
Assassination adheres to none of this. The Killer must first destroy himself- forget who he or she is. Become nothing-- an instrument of time and space, leading souls to destiny, facelessly serving Death- as old as time, yet paramount to the future for all.
The scroll was flashed to each Chunin- not given. They had but a few moments to see information on it before it caught flame. Before the information ceased to exist. If they were up to the task, the Beach called to them under cover of darkness...