The so-called "jacking" must be all in-game, it's just not feasible for someone out there to have the knowledge to hack into answering machines, fake call-backs to people who called the numb ...
"We haven't forgotten you, Cassie. Two years later. We won't forgive them. Two years later. We're still singing your song, "Our Children's Garden." ...
I think the frames at the begininng are meant to lead someone to the swimming hole. This is like geo-caching, someone needs to go there and get that sack!!!