no illusion that what we're seeing there is completely genuine and michelle's mother was possessed? >> oh, absolutely. everything was ruled out. she had all kinds of testing done, physical, mental. absolutely everything was ruled out. as time was going on during the investigation, pat started falling victim to this. she was exhibiting, you know, several of the different signs we look for. gaining an enormous amount of strength, talking in a language she wasn't familiar with, familiar with different things. she would just start tossing these big, hulky guys around holding her down like they were rag dolls. >> are these classic signs of someone who has been possessed by the devil? >> absolutely. it falls into the category of what a true possession actually is. >> michelle, obviously very difficult for you to have to watch this. your mother has passed away since this video. >> yes. >> she went through 16 exorcisms. >> yes.