direction -- >> gun safety, gun safety, gun safety. >> he's scared. >> yeah. >> reporter: but austin doesn't do anything about it. he doesn't get away and he doesn't get an adult. >> wait, let me see it. i'm going to take it off. >> reporter: then look what vinnie does next. >> how do you put this thing back? >> just click -- sound. >> yo, i thought you were supposed to -- >> yeah, it's like -- it's like right there. >> is he shooting it? >> that's a real gun. >> reporter: how are you doing? >> i'm really sad that he would just do that. and i've failed because i haven't taught him enough about it. >> feel, like, feel how heavy that is? >> reporter: the actors put the gun near austin. >> i don't want to touch it. >> he doesn't want to touch it. >> and my son won't stop. >> killed him.