You know what? Obviously, they're not the same person. Maybe Riley is that woman's daughter. They look awfully similar, and of course, the age difference is very obvious.
Get your Portable ID!
Metal Gear Rising: Revengeance, Tomb Raider, God of War: Ascension, Grand Theft Auto V, and The Last of Us.
By the way, this signature is very outdated.
I can't find a link if anyone knows it please post. In a video Neil Druckmann states that Riley is exclusive to the comics.
Yeah Riley is exclusive to the comic. He revealed that on a twitter question and answer event. The comic spans one night. I also asked him will he consider making a comic seris based on Joel's backstory, he said Joel does have some interesting history, we'll see (judging how quickly issue #1 is already on it's 2nd printing, it's very posible)