That's a good point, julianne. Let's look at the credentials of the person saying JonBenet was masturbating in front of a group of seniors with a saxophone - Dr Judianne Densen-Gerber.
(some of this is paraphrased by me)
She was a psychiatrist who graduated from Bryn Mawr College (1956) and received her JD (1959) from Columbia University, MD (1963) from New York University, and D.Sc. (Hon. 1983) Lebanon Valley College.
She dedicated her professional life to fighting substance abuse, child abuse, battery of women, and











.
She pioneered the therapeutic community concept, which was embodied by Odyssey House, which she founded. Through her tireless work Odyssey House expanded to have facilities in over a dozen states and 3 continents.
Through the hands-onwork that she did and her prolific writings (including 3 books: Drugs, Sex, Parents and You; We Maineline Dreams; and Walk in My Shoes), she influenced societies conception of addiction and in many ways formulated its approach to treatment. She was appointed to numerous local, state, and federal bodies to address these issues and served as personal advisor to several members of congress.
She received innumerable awards for her work including a Congressional Certificate of Merit, Nobless Order of the White Cross (from the government of Austrailia), Dame Commander of the Knights of Malta, and appointed an Honorary New York State Fire Chief. She was on the faculty and lectured at several medical and law schools.
*sidenote - She was also married to Dr Michael Baden.
http://query.nytimes.com/gst/fullpage.html?res=9B00EEDF113FF930A25756C0A9659C8B63
Based on her education and work, considering one of her areas being abuse in children and











, I think she was qualified to state her opinion that JonBenet was engaging in sexualized behavior in her performance with the saxophone, and that it wasn't just her projecting her own thoughts into what she saw.
I'm on the fence about the video with JB - part of me wants to see exactly what JB was doing, but part of me never wants to see anything like that at all. I would perhaps assume that the RST has effectively shut down anyone showing that video clip without express permission to do so. I don't think it can be dismissed as a fallacy, though - Dr Densen Gerber has obviously seen it, and I trust she knew what she was talking about.