The thing is, though, one lie leads to another, and then eventually it becomes all but impossible to tell the truth. Sadly, that seems to describe Tonya's situation.
Well, she certainly wasn't a "passive" participant, in the sense of just sitting around and watching soap operas instead of trying to find out where Nancy practiced. But she obviously had a lot of practicing to do for Nationals, so it seems that she wasn't as active as Jeff or Shawn (did they have jobs?) anyway. Nonetheless, she would definitely qualify as an accomplice.It seems clear to me that the FBI thought Tonya was in on the plan before the attack and had an active role in planning..