Officials: Norwalk fire that killed 7-year-old girl deemed ‘undetermined’

The investigation into the Norwalk fire that killed a 7-year-old girl is now over.
Summer Fawcett died after flames tore through her family's home on Nelson Avenue May 14.
The fire marshal and state police explosion team Tuesday deemed the cause to be "undetermined."
Officials say they examined all possible ignition sources but could not pinpoint where the fire began.