Seventeen-year-old Bianca Devins was supposed to be having the night of her life, attending her first concert, experiencing a new sense of independence, and stepping into everything her future could hold. But by morning, she never made it home, and instead, a horrifying image posted online sent shockwaves across the country. What began as a fun night in New York City quickly turned into something far darker, revealing a chilling obsession and a brutal act of violence...