Demolition resumes at Philly building collapse site
Demolition has started once again at a Philadelphia building that collapsed earlier this month.
A new contractor will remove the remaining rubble from the site.
The building collapsed on an adjacent thrift store while the building was being torn down.
Six people died and a heavy equipment operator has been charged with involuntary manslaughter.
Investigators say he was high while he was operating an excavator.
A grand jury is also investigating the incident.
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