A leaking propane tank exploded inside a rented Penske box truck Saturday morning in Addison, causing a powerful blast caught on doorbell camera that damaged nearby homes but left the driver unharmed. The explosion occurred around 8:45 a.m. on Wood Dale Road, north of Lake Street, and is being treated as accidental. The customer, who was moving household items, violated Penske’s policy prohibiting hazardous materials. Cleanup and repairs began Sunday, with authorities confirming the truck compan