Olivia Amezcua holds her cat Stripes as she watches firefighters work at the scene of an apartment fire next door to her residence in the 300 block of Marble St. Wednesday, Oct. 24, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
A firefighter packs up gear at the scene of an apartment fire in the 300 block of Marble St. Wednesday, Oct. 24, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Firefighters work at the scene of an apartment fire in the 300 block of Marble St. Wednesday, Oct. 24, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
A firefighter walks at the scene of an apartment fire in the 300 block of Marble St. Wednesday, Oct. 24, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
JOLIET — Fire caused heavy damage to an unoccupied two-unit apartment building Wednesday morning in the 300 block of Marble Street. Olivia Squamezcua said she had just come downstairs to feed her cats when she looked out her side windows. “I saw smoke coming from …