I know nothing of who Pete is or his associations, so any accuracy on the following speculation is purely coincidental.
"Take full responsibility" is also something someone set up as a scapegoat might say. By claiming nobody else influenced, coerced, or otherwise convinced them to make that statement, every/any one else involved can then wash their hands of the situation.
I'm merely playing devil's advocate here, and it's just a sign of the times that a person making an honest admission can be interpreted in such a manner.
"Take full responsibility" is also something someone set up as a scapegoat might say. By claiming nobody else influenced, coerced, or otherwise convinced them to make that statement, every/any one else involved can then wash their hands of the situation.
I'm merely playing devil's advocate here, and it's just a sign of the times that a person making an honest admission can be interpreted in such a manner.