Amaya v. State
In Amaya v. State, 733 S.W.2d 168, 174 (Tex. Crim. App. 1986), the court of criminal appeals held that "we cannot hold the defendants accountable as parties without some indication that they knew they were assisting in the commission of an offense." Id.
The court goes on to state that:
"We require a higher level of complicity from those we denote parties than those we denote primary actors, because the former are performing acts that are not illegal in and of themselves; the acts only attract criminal liability because of the result they are directed to, the commission of the crime." Id.