There's this rumor going around that it was not Franco who sent Jason that DVD and that the person who really sent it was Heather Webber, Heather Webber is the mother of Steve Webber Scott Reeves' character and that it could have possibly been Heather who set the fire to Franco's art studio after Jason shot him
Another rumor is that either Franco is either Jason's twin or...
That Franco could be Heather Webber's bastard son and if that is the case, that Franco was given up for adoption by Heather and that she gave him to the woman who raised Franco
If Franco is Heather's son and this rumor turns out to be true, then that means Franco and Steve are half-brothers
Or if Franco is Jason's twin, that means Franco is a Quartermaine and that means Jason killed his own brother