Juju Chang

Sarah and her family were well-known in Neptune City.

For decades, her parents had a bookstore in town called Books Unlimited.

And for a time, her mom Carla was president of the parent-teacher organization.

Sarah spent her whole life in the same neighborhood, the same house.

Without any siblings, she really grew up with the kids who lived around her.

Her neighbor, Carly Draper, said the two were raised like sisters.

They always dropped by each other's houses and played together all the time.

As Sarah got older, she built a community online, too.

Like so many teenagers in the 2010s, she expressed herself through her Tumblr account.

She shared art, comics, and posts about how great dogs are.

She posted about funny, quirky TV shows like Broad City and Bob's Burgers.

She shared memes of the comedian Kate McKinnon and things like, as a 19-year-old, I oddly love Target as if I were a suburban mom of four.

She was also really into YouTube channels and personalities, just as the platform was starting to take off for content creators.

Sarah became friends with other superfans around the world, and they recorded their Google Hangouts for a YouTube channel called Sprinkled Nonsense.

They weren't really talking to an audience.

They were just chatting with each other and putting it out there.

What?

Sarah was known for her quirky sense of humor.

In a high school yearbook photo, she made a mustache out of her long, straight, dark brown hair, and a few girls next to her joined in.

Sarah has brown eyes, and when she smiles, she has big dimples.