The question below relates to the following case: first: sally pleads with mark to rob a store owner and the clerk who are victims in this scenario so they can have money for drugs and alcohol. second: mark refuses to rob the store owner, but does agree to distract the clerk by using the video games so sally can steal the money herself. third: when they commit this crime, two of their friends, bob and frieda, watch them. bob has no involvement in the crime and leaves before the police arrive. frieda stays and tells the police that she heard one of the thieves say, "let's go to california immediately." this is a lie, but she doesn't want her friends to be caught. fourth: the clerk at the store did not actually report the crime. she was afraid she'd lose her job. an anonymous tip actually brought in the police. what role did mark play in the crime?