A new contractor is preparing to begin demolition work at the site of a Philadelphia building collapse that killed six people.

Site of Philadelphia building collapse
Site of Philadelphia building collapse (Jessica Kourkounis/Getty Images)
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Geppert Bros. says it's in talks with the site's owners about clearing away the remaining rubble at the downtown site of the June 5 collapse. A spokeswoman for the company, Mary Pat Geppert, says about three to four weeks of demolition work remain.

A message left with the company by The Associated Press was not immediately returned.

The collapse killed six people inside an adjacent thrift shop. A subcontractor has been charged with involuntary manslaughter after investigators say he was operating an excavator while high on drugs.

The city's top prosecutor has convened a grand jury to investigate whether anyone else should face criminal charges.

Copyright 2013 The Associated Press.

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