Deaths of 2 Chicago boys found in home last year ruled homicides

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Authorities have determined what killed two boys whose decomposing bodies were found in a Chicago home last year along with those of their mother and another sibling.

The Cook County medical examiner's office said Tuesday that 11-year-old Andrew Simms Jr. and 10-year-old Kameron Simms died of "probable inhalation of products of combustion" in a house fire. Kameron also suffered carbon monoxide toxicity. The deaths were classified as homicides.

Neighbors complaining about a smell directed authorities to the home on the South Side where the bodies were found July 18. Twenty-seven-year-old Latoya Jackson and 5-year-old Kantrell Williams were also found dead.

Authorities previously determined Jackson was strangled and the 5-year-old died of probable inhalation of products of combustion.

The Chicago Fire Department has said the fire was contained to the building's interior.

No arrests have been made.