Brookhaven Town fire marshals found no evidence of a suspicious cause for the fire that killed the founder of the Happy Cat Sanctuary rescue in Medford and more than 100 cats, the chief fire marshal said on Thursday.

There's an official finding in the deadly fire at Happy Cat Sanctuary on Long Island, but it leaves many questions unanswered.

The cause is officially "undetermined," which means arson is not suspected, and the fire was not deemed suspicious. It's believed it started indoors. CBS News New York's Carolyn Gusoff reports.