The fire was reported around 2 a.m. Thursday in the 900 block of South Grant Street, near South Ohio and East Gray streets.
Asphyxiation was initially thought to have caused the 14-year-old's death, but after an autopsy that theory was ruled out.
A small Arctic island, that possibly features more polar bears than people, figures among the more peculiar places on the U.S. tariffs target list.