Doesn't suit your agenda huh? Why couldn't it? There is no evidence to rule it out as a possibility.

__________________
“The only thing necessary for the triumph of evil is for good men to do nothing” - Edmund Burke

So in the Libyan fable it is told
That once an eagle, stricken with a dart,
Said, when he saw the fashion of the shaft,
“With our own feathers, not by others’ hands,
Are we now smitten.” Æschylus