Investigators late Sunday were working to confirm the identity of the person found dead, and the circumstances of the discovery.
The roof of the building was destroyed, along with balconies for at least two units.
Charges were pending late Sunday against the driver of the Chevy Equinox, police said.
Several dozen people were in the home for a family gathering at the time.
The U.S. launched strikes on three Iranian nuclear facilities on Saturday night Chicago time.
The child was rescued from the pool at the Sunburst Bay Aquatic Center.
Fire officials said the blaze was electrical in nature, and at least 20 people were on the boat at the time.
The 15-year-old from Joliet was arrested and charged with aggravated unlawful use of a weapon.
The climb helps support the over 1.4 million people living with lung disease in Illinois.
South Elgin police said just before 2 a.m. on Saturday, officers responded to the area of Randall Road at Stearns Road for a report of a single-car crash involving a gray 2021 Kia Sorento.
Vilmer Alcaraz, 32, of Chicago, was arrested Friday afternoon in the 5700 block of South Cicero Avenue.
The crash happened just before 3:30 a.m. on northbound I-55 south of Lemont Road in DuPage County.
First responders across Chicago and the suburbs were put to the test on Saturday, responding to at least a dozen water rescues and possible drownings along the lakefront, including responses at Navy Pier, 63rd Street Beach, and The Playpen.
Democrats condemned the president for attacking Iran without seeking congressional authorization, while Republicans supported the strikes.
A 27-year-old woman was pulled out of the water near Navy Pier around 5:30 p.m., and was taken to Northwestern Memorial Hospital, where she was pronounced dead, police said.
