The City of Columbus has more than 6,000 vacant or abandoned properties. When owners can't be tracked down, ABC 6 Investigators found that taxpayers are ultimately the ones held accountable for the mess left behind. Last year, $700,000 was spent to clean these places up. We worked to track down members of one LLC that owned nearly a dozen problem properties. Holding those owners accountable is easier said than done. Our investigation helped spark city action and discussion. City Council is proposing stiffer penalties and laws surrounding landlord accountability.