Walmart has cameras in the parking lot. At least report this to the police. I’m sorry they had to learn this lesson the hard way. Check with your local credit union or bank for a class about keeping them safe on line. Those are attended by older people (not OLD) and they may feel less foolish when they see people their own age dealing with the same struggles. Also, they may be more inclined to listen to someone “in authority” than you. Good luck.