At a September 29 Philadelphia police briefing, investigators said they had reviewed roughly 30% of the files in the house of horrors case and identified 58 people, 10 of whom died in unrelated circumstances. No bodies have been found, and no definitive causes of death have been established. Barrels were found in the basement with pipes that appeared tied into the sewage drain, and sludge samples were sent to a Chicago lab to test for sodium hydroxide and organic material. Two clogged sewer pipes were excavated and sent for forensic examination, though reporting differs on whether that happened in July or August. The discussion now centers on what the lab results and pipe forensics will establish and whether physical remains…