The Many Half-Lived Lives of Sam Sylvester by Maya MacGregor
In this queer contemporary YA mystery, a nonbinary teen with autism realizes they must not only solve a 30-year-old mystery but also face the demons lurking in their past in order to live a satisfying life.
Sam Sylvester's not overly optimistic about their recent move to the small town of Astoria, Oregon after a traumatic experience in their last home in the rural Midwest.
Yet Sam's life seems to be on the upswing after meeting several new friends and a potential love interest in Shep, the pretty neighbor. However, Sam can't seem to let go of what might have been, and is drawn to investigate the death of a teenage boy in 1980s Astoria. Sam's convinced he was murdered--especially since Sam's investigation seems to resurrect some ghosts in the town.
Threatening notes and figures hidden in shadows begin to disrupt Sam's life. Yet Sam continues to search for the truth. When Sam discovers that they may be closer to a killer than previously known, Sam has a difficult decision to make. Would they risk their new life for a half-lived one? -goodreads