A sequence of assassinations is hard. Are you expecting enough of your group to survive and continue? Other groups to take up the project?
Not having a significant power base is rather a limiting factor when it comes to just about any political campaign. I suggest that it takes less surviving members to arrange assassinations than it requires to perform a rebellion via conventional tactics.
Has the sequence of assassinations tactic ever worked?
A reminder for everyone: on this day in 1983, Stanislav Petrov saved the world.
It occurs to me this time around that there's an interesting relationship here - 9/26 is forgotten, while 9/11 is remembered. Do something charitable, and not patriotic, sometime today.