Based on personal experience, eminently unqualified applicants can get hired if they went to high school with the hiring manager. You don't even need to be friends or in the same class, heck it might even be a different high school in the same time frame in the same general area.
But what if you didn't go to high school together? If you're in the same age range, snag some pictures from his (this will only work if he's a bro, by the way) facebook or yearbook and deep fake yourself into them. If you're not in the same age range, that's ok, maybe your brother was in his class. Get a list of names and nicknames from the yearbook so you can "remember" seeing him at a kegger or a house party, the time J-Dawg was making out with Ashley and blew chunks all over her.