They are telling their stories to seek justice. By sharing what happened to them, they hope to ensure that Larry Nassar is held accountable for his actions.
These girls may be telling stories of their journey to come forward. It wasn't easy for them. There was probably fear of not being believed, fear of retaliation. But they overcame those fears. Their stories also touch on the support they received from some quarters, like their families or other survivors, which gave them the strength to speak out against Larry Nassar's atrocious behavior.
Well, Holden doesn't exactly give a specific date or time. It's more like he's reflecting on the past without pinpointing a precise moment when he starts sharing his tale.
Since we don't have much information given, Larry in '600 lb life larry's story' is presumably an individual who has reached a weight of 600 lbs. He might be from anywhere, with different life circumstances that led to his extreme weight. He's on this show to document his journey of transformation. It could be that he has faced discrimination or has been unable to do things he loves because of his weight. His identity as Larry is tied to his story of facing the challenges of obesity and trying to overcome them with the help of the resources provided by the '600 lb life' program.
A clear plot. For example, if you're making a point about perseverance, your story plot could be about a person trying to climb a difficult mountain. The sequence of events, from starting the climb, facing obstacles like bad weather and steep slopes, to finally reaching the top, makes the point clear.
Well, in 'larry the scary story', Larry might be a character that is central to the horror elements. Maybe he is a victim, or perhaps he is the source of the scariness. For example, he could be a haunted figure or someone who has stumbled upon a dark secret, which then leads to all the terrifying events in the story.