Sebastian Moran was his greatest ally, but no one knew it.
Jim had known Seb since they were kids. Seb was the only one that never laughed at him.
He helped silence the other kids laughing. He got chemicals, weapons and new exactly how to use them. Jim didn't question it.
Seb helped him, took care of him, made sure he didn't get lost in his own mind. Seb was brilliant, in his own right. Could get anything from anyone with his devious nature.
When Jim got caught there was no one else he would have wanted to defend him.