Investigation continues into North Philly building collapse that killed a firefighter
Sean Williamson on Saturday, June 18, 2022. - YONG KIM/The Philadelphia Inquirer/TNS

PHILADELPHIA — Heaps of bricks, twisted metal and splintered wood spilled across West Indiana Avenue and Third Street in Fairhill on Sunday morning, the battered sign for Star Pizza & Seafood jutting from the rubble. What caused the fire in the mixed-use building and what ultimately led to its collapse early Saturday — killing Lt. Sean Williamson, injuring four other firefighters and a city building inspector and displacing 11 residents — could take a week or more to uncover, fire marshals said. “This will be painfully slow: a systematic effort, piece by piece,” Fire Marshal Battalion Chief Ch...