A fire that sparked after 3 a.m. Saturday did $100,000 in structural damage to a South Austin home and killed a dog and a cat, though the resident got out safely, Austin Fire reported. Flames were heavy in the front of the house in the 5800 block of South First Street, near Ben White Blvd., when firefighters arrived. Red Cross is assisting the resident. The fire department has not released information about the cause. Final update 5803 S 1st. Fire cause accidental, electrica short.