User blog comment:Gracchus Mccarthe/If you don't yet know it, I'm obsessed with all things Zoom. I believe my first theory about him is correct. This post shows why./@comment-27779929-20160327144208/@comment-27779929-20160327144447

Maybe that's why no one in earth-1 knows Jay, because Zoom traveled way back in time to kill his family and forces an adoption thad has changed his name.