Then the proper terminology is to say the MS Estonia had sunk by the time his ship arrived on scene. The traces were in the water. You're trying be melodramatic.
Took about an hour. Had the crew and captain responded properly upon the first report of water coming in from the bow, there's a good chance she wouldn't have sunk at all. Certainly would have had more time to evacuate passengers.
You imply that the sinking was unusual, but almost all non-combat related sinkings go the same way:
Water breaches the hull.
Water fills one compartment, and moves into another.
Eventually enough compartments have filled with water that the vessel's rate of sinking increases.
Ship sinks.
Almost every big ship seemed to "sink fast", Titanic, Edmond Fitzgerald, Adrea Doria, and so on. But when their sinkings are modeled the data shows their sinking speeds were relative to the damage, and the seas conditions.
Estonia sank in a storm in which she was never designed to sail. The storm combined with poor seamanship put her on the bottom. We're talking about a ship design notoriously unstable to the point one rolled over in a harbor. There is no real mystery here.
Which means there was a trace. Can't wait for this to become it's own thread.