People responsible for death said to be familiar with places where remains were found . Morgan Harrington last seen at concert in October , when she was separated from friends . Morgan 's skeletal remains were found on 700-acre land about 10 miles from concert site . Harrington 's purse , with her identification and cell phone inside , was found the following day in an overflow parking lot near the arena , police said . Trees , streams , rocks , make land difficult for stranger to negotiate , authorities said .
People responsible for death said to be familiar with places where remains were found . Morgan Harrington last seen at concert in October , when she was separated from friends . Morgan 's skeletal remains were found on 700-acre land about 10 miles from concert site . Trees , streams , rocks , make land difficult for stranger to negotiate , authorities said .