Is the last 20 minutes of Megan is Missing real footage?

in the movie megan is missing, it says the last 22 or so minutes of the movie is raw, unedited footage. but i dont know if it meant it was real footage WITHIN THE MOVIE, or REAL LIFE footage of REAL events. and if it is REAL footage, what was the real name of the girls? and was the killer ever caught?
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