I found on youtube some videos, not only we got many teories
https://www.youtube.com/watch?v=GhJl4i5IEN8
https://www.youtube.com/watch?v=sfNt6LqYStc
https://www.youtube.com/watch?v=QilbRazxOUg
Despite of it maybe FRed is Reds twin?
Jennifer and Liz lost contact with father in christmas, so maybe one dead died by Liz and second started to be his brother