This sort of reminded me of the quote from V for Vendetta its about acts of violence of structures rather than people but I think it could be applied to assassinations. When asked if blowing up buildings will make the government afraid of its people, V replies, "The building is a symbol, as is the act of destroying it. Symbols are given power by people. Alone, a symbol is meaningless, but with enough people, blowing up a building can change the world." I suppose you could change the quote to; "Authority figures are symbols, as is the act of destroying them. Symbols are given power by people. Alone, a symbol is meaningless, but with enough people, assassinating a Government Official can change the world."
"... [E]very one, whatever his grade in the old society, whether strong or weak, capable or incapable, has, before everything, THE RIGHT TO LIVE, and that society is bound to share amongst all, without exception, the means of existence at its disposal." - Peter Kropotkin
"For the recognition of private property has really harmed Individualism... by confusing a man with what he possesses... The true perfection of man lies, not in what man has, but in what man is." - Oscar Wilde