An 18-year-old high school student has been arrested and faces federal charges after allegedly setting a sleeping homeless man on fire on a subway train at Penn Station in New York City. The disturbing incident, which occurred on a Midtown subway line, has sparked outrage and raised concerns about safety in public transit. Authorities reported that the suspect was identified by a distinctive mustache and was caught on surveillance footage fleeing the scene. The victim suffered serious injuries as a result of the fire, and ongoing investigations have revealed multiple witnesses to this brutal attack.