User blog comment:Tommy,Klaus&Kol2012+/future antagonists/@comment-79.115.71.25-20151128172925/@comment-4554525-20151206222844

while I do agree it's possible he is alive we have to sort of go off clues, dean would in no way let cain live so he could continue to wreak havoc but im not saying it's 100% he is dead

same as the rest of the frankensteins, dean claims he killed every single member but some could have gotten away from him