>> i wanted them to charge her with murder. but i'm not the one who has to prove it to everybody. that's not my job. >> reporter: rachel pleaded not guilty. she posted bail and was released. >> yeah, i'm still in shock, disbelief. >> reporter: later that day, she held a press conference. >> are you saying you're innocent? what are you saying? >> i'm completely innocent. >> reporter: she was willing to bet that a jury would agree. >> coming up -- rachel on trial. >> reporter: you an honest person? >> i think so. >> there is not a doubt in my mind that rachel knew. >> when "dateline" continues. >>s it can cause damage to the enamel. with pronamel repair toothpaste, we can help actively repair enamel in its weakened state. it's innovative. with pronamel repair, more minerals are able to enter deep into the enamel's surface. the fact that you have an opportunity to repair what's already been damaged...it's amazing. i think my go-to toothpaste