Federal authorities say 47-year-old Jonathan Wiktorchik Jr. of Southampton, Bucks County, was the subject of an Internal Revenue Service probe before the gasoline-fed, 2008-blaze.
Wiktorchik is charged in Monday's indictment with arson, mail fraud and lying about the March 2008 fire in Ottsville.
The indictment says Wiktorchik initially told investigators he was on a camping trip and later blamed the fire on gang members. Authorities say he also lied by saying all his business records were destroyed in the fire.
A message left at his Southampton office was not immediately returned and it was not clear if he has a lawyer.
