Feedback on My Query?

My writing career has been taking a really circuitous path over the last couple of years, and unfortunately, there's still no end in sight. As such, I've been working on a new project and new query and would love to hear your thoughts.
Content warnings: mass shootings and suicidal ideation
Dear [Agent]:
It’s been five years since Roxy’s life fractured into Before and After, since her then-fourteen-year-old attempted suicide by cop. This is the lie they told, at least, to hide an even fouler truth, ...