Acne 2 - a comparative study of tea-tree oil versus benzoyl peroxide in the treatment of acne found that 5% tea-tree oil and 5% benzoyl peroxide had a significant effect in ameliorating the patients' acne.
babushka - a woman's headscarf folded into a triangle and tied under the chin; worn by Russian peasant women. headscarf - a kerchief worn over the head and tied under the chin.
As such her film could have been invaluable to the investigation. In 1970 a woman called Beverley Oliver came forward claiming she was in fact the Babushka Lady. She claimed that the FBI had seized her camera following the event and had forced her to stay quiet. She was largely considered a fraud however.