Family Dollar complaint: Harassing manager

I work at the family dollar on Main Street in Hackensack NJ, the assistant store manager Karina Martinez , is always harassing the employees. She Says we do not do our jobs right, she’s always complaining that she does everything which she does not . She got physical and pushed one of our cashiers before because she was counting her drawer too slow and I witnessed it. She’s gotten into many arguments with other employees, and always tries to make others look bad. She tried to make it look like the other employees was stealing cigarettes but I’m pretty sure it’s probably her the guy that was the manager before was her friend and he also got fired for stealing cigarettes. She doesn’t do any of her work and always tells the store manager we don’t do what we have to do but it’s because she leaves her work for us to do besides our own. She said we don’t know how to recover because she checked and seen stuff in the wrong places for weeks , if she “seen things in places they don’t belong” then why didn’t she put it in it’s correct place ?