Timothy Daniels, 17, is buried in Trench 209. He died in 1990 in an upstate homeless shelter run by the city for men over 35, a place no juvenile was supposed to be. Yet there is no trace of any official inquiry into how he died there.
Source: https://www.nytimes.com/interactive/2016/05/15/nyregion/new-york-mass-graves-hart-island.html