Forensic investigations will begin Dec. 10 at the construction site of the Berkman Plaza 2 parking garage in Jacksonville, Fla., following the discovery early on Dec. 8 of the body of the worker missing since the Dec. 6 collapse. Authorities declined to speculate on the cause of the collapse, but an engineer who investigated collapses at the World Trade Center, the Oklahoma City federal building and other sites suggested several possibilities.

About 2 a.m. on Dec. 8, searchers identified a location where they thought Willie Edwards III had been working at the time of the collapse. Search dogs confirmed the suspicion about 20 minutes later, said Dan Kleman, director of Jacksonville Fire and Rescue Dept. Edwards’ body was found under 20 in. of rubble, encased in 3 ft of fresh concrete. A JFRD ambulance removed the body about 3:30 p.m. in a motorcade led by the medical examiner.