Late last night a YouTube commenter known as "1978mackdaddy" posted the following message under the beginning of the Disappeared episode devoted to Maura's disappearance:
"If you want to find this girl it's pretty easy. She now lives in Sherbrooke Quebec with a guy named Maurice. She's been living there for years."
I strongly suspect this is an old troll coming back to muddy the waters. But it would be interesting if this person could offer a bit more.