My daughter and her friend was sexually assaulted... advice please

Today I took my daughter and her friend to a nail salon to get our nails done while my nails were getting finished up both girls needed to go to the bathroom so the lady who painted their nails offered to show them where the bathroom was instead she took them into the bathroom pulled their shirts up and their pants down and watched them pee and then wiped them!! and they told me about it once we got into the car. My daughter told me she 100% felt violated... I immediately called my daughter's friend's mother who came there and we filed a police report. Now her friend's mom has posted on Facebook no details just #saveourchildren and to not go there! a part of me wants to share it but another part of Me feels like I shouldn't... Because I have not been able to speak with my daughters father about the situation yet.... The lady was elderly and her excuse was the girl's nails was not dry and when I told her that was no excuse she then tried to say that where she comes from it is the elderly's job to take care of everyone's Young I told her that was also not an excuse...But there is already an open police investigation and the matter is being handled appropriately through the police.... I'm also seeking a lawyer! But is there anything that I can and should do to help my daughter in this situation...she is 9 years old btw. I just want to do what's best for her ...so any advice would be great!