Nanny Cams Soo IMPORTANT

So my husband and I got a nanny for our twins. She started after thanksgiving. I didn't want a nanny cam well my husband went out of his way and installed one when he was having a second intuition just recently. We just put it in this week. Who knows what she had been doing this whole time. Well, we found out a lot of terrible things and my son who had special needs was acting very weird. He kept putting his hands over his face and crying and putting his face in my chest for past couple days. At first thought it was a thing he picked up. I know bad mothering didn't want to think worse and first time mom. Well my son stopped eating and sleeping. My nanny kept making excuses and lying. Well one day this week my husband was looking at the cam on his phone and saw her knocked out sleeping with my son screaming on the floor he fell off the couch!!! His sister was ready to fall. My husband hailed ass home and fired her right on spot. I just can't believe people are so messed up and can't do their jobs. So sad. Now my little boy who is 7 months has bruises all over his head and we are waiting for other tests. I'm thinking of suing. I reviewed all the videos and she wasn't giving him his medicine either. I'm so sad shocked and horrified. So upset.  Her background checks all passed too which is scarier.