Two days after the boat capsized, 12 crew members remain unaccounted for
There is no evidence they are in the water, meaning they could be in the boat
The Seacor Power is partially submerged in the water off the Louisiana coast
Six crew members have been successfully rescued, while one has died
The results of an imaging video taken on Wednesday to detect possible movement on the ship has not been disclosed to the public
A sweep of the area around the wreckage could take up to four days