Fire Driver Jeremy Klemm died Saturday evening after battling COVID-19 for more than a month.
An online video shows rapid fire spread during a DJ's pyrotechnics show and people's attempts to escape the raging flames.
She was in town checking out the 100-plus-year-old building for a potential project.
The estimated loss is $200,000 to the structure and $50,000 to the contents, but no lives were lost.
Firefighters battled the fire for more than four hours before finally bringing the flames under control.
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