The Israelites could not kill one guy without their assassination being discovered.
Oh don't say that - because then you just invite someone to go "of course they carry out the occasionally inept secret service operation - that's just to get the rest of us to drop our guard".
Anyone who is of the essential conviction that jews are somehow disproportionately in control of world events because "some of them are successful bankers" or whatever is:
a) simply denying a reality in which the jews have been put through more hardship than the ethnic, religious or cultural groups their accusers come from
b) indulging in the same sort of money worship they accuse the jews of - because why resent someone's position as a controller of the money flow (which many non-jews are as well of course) unless you think you'd do a better job of controlling money the money flow than those who do (in which case learn about banking, join a bank, perform and chase promotion opportunities - if every non-jew who moaned about the "secret zionist control of banking" actually did that we'd see more of them in control of banking - with some ugly results, I suspect)