Excerpts from wgntv.com:

No injuries were reported in a house fire in Hickory Hills Tuesday where firefighters were called to 8830 Beechnut Road around 6 p.m. for reports of molotov cocktail being thrown at a house. The fire started in the garage and spread to a vehicle that was parked inside.  Gasoline from that vehicle fueled flames that traveled through the walls and into the roof.

The family that lives in the home was able to get out unharmed but damage to the home is extensive. As the family fled the home they noticed a gas can outside that they said was not on their property before. The official cause is under investigation.  The state fire marshal on scene with a canine to sniff for accelerants.

thanks Keith