what happened to the old man in 15 camaras
In 15 Cameras , the old man is Gerald , and he is already dead by the time of the sequel; his presence is mostly through recordings and the earlier events tied to the hidden-camera storyline.
What happened to him
The film’s background is that Gerald’s story from the earlier movies is carried forward through archived footage and the consequences of the voyeuristic setup, rather than showing him alive in the present-day plot. The sequel focuses more on the couple who move into the duplex and uncover the cameras than on Gerald himself.
Why people ask about it
A lot of viewers ask about the “old man” because the earlier films leave a strong impression, and the sequel references him indirectly instead of centering him. That can make it feel like something was cut or unexplained, when it’s really just part of the franchise’s continuation.
In plain terms
So the simple answer is: he does not survive into the events of 15 Cameras ; his role is part of the earlier history behind the camera setup.
TL;DR: The old man in 15 Cameras is Gerald, and he’s dead before the sequel’s main events; the movie uses his past mainly through recorded footage and backstory.