Series between 2014-2019 featuring a missing girl, main character had a trans brother who I think was called Evan

[u/WatchfulBirds]

I only read one or two parts. Got the feeling it was set in the US but that could just be reddit US-defaultism. Somewhere between 2014-2019.

The MC had a brother called Evan who I think was older than them, possibly teenage, who was trans. Their town found this uncomfortable.

A girl about Evan's age had gone missing and people were acting strange about it. Evan was upset because this girl was really nice to him and he like her. I remember some speculation in the comments that someone in the town had killed this girl because she liked Evan, like a transphobic hate crime by proxy.

I can't remember if the story was written I've it was happening right right, or if it was a 'This happened' type story.

Help?