Firefighters were called Sunday morning to the apartment model Heather Stohler shared with her boyfriend, Daniel Risley. When they got there, they found the unit up in flames. Both were rushed to the hospital where Stohler died later that day. Risley died on Tuesday.

Investigators have determined the cause of the fire was a burner left on in the kitchen. The fire quickly spread throughout the home. Smoke and flames had to be eliminated before rescuers could get to the victims.

Vincennes Fire Chief Mike Lankford says it appeared there were no working smoke alarms in the apartment.

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