Ok, thanks. I am a member of large networks of researchers into these subjects and so I typically see a wide variety of data that doesn't make it onto most people's 'radar'. The female in the first video you posted is one who it is being claimed has also appeared at other mass shootings - which is a constant theme of investigation among researchers of this field. The claim is that many such events are faked for the cameras, like a hollywood movie, using hyper realistic dolls and special effects. I cannot say if that is true or not, but in the spirit of open investigation I leave the possibility as an option. All that said, there's clearly a whole lot being covered up and denied by 'the authorities' here - so the enquiry continues.