the exact death toll is still unknown the remains of more than 50 victims were never claimed by any family members. and the remains of more than 30 victims were never even identified. this is a memorial park, built three years after the storm, built in the shape of katrina's eye. that actually houses the remains of the unclaimed, unidentified victims. we are going to take you back in places we restaurant r report -- reported on in 2005. you are going to meet survivors who say for them in so many ways katrina really is the storm that never stopped. >> how are you doing, sir? what happened? your house split in half? >> we got up on the roof. all the way to the roof. and water came and just opened up. divided. >> who was at your house with you? >> my wife. >> where is she now? >> can't find her body.