Can a person who aids and abetts a crime be found guilty as a principal?

A person who aids and abets an offense may be found guilty as a principal. (Pen. Code, 31.) There exists two distinct forms of culpability for aiders and abettors: "First, an aider and abettor with the necessary mental state is guilty of the intended crime. Second, under the natural and probable consequences doctrine, an aider and abettor is guilty not only of the intended crime, but also 'for any other offense that was a "natural and probable consequence" of the crime aided and abetted.' " (People v. McCoy (2001) 25 Cal.4th 1111, 1117.)