Overview

• Authorities executed a search warrant Tuesday at a Second Avenue home in San Francisco linked to company owner Kenneth Chee
• Kenneth Chee held valid state fireworks and explosives licenses despite being denied a federal permit following a 1998 felony conviction
• CalFire, the ATF and local law enforcement continue to investigate the origin, cause and regulatory violations of the July 1 blast that killed seven and injured two
• The explosion ignited an 80-acre fire on agriculture-zoned land where thousands of pounds of display-grade fireworks were stored without proper county permits
• DNA testing on recovered remains is underway as families await confirmation of the victims’ identities