[PapaBear3625]

Particularly, this hit looks it might be near the stern, meaning the destroyer would have had the right-of-way.

The more-maneuverable vessel is supposed to give way to the less-maneuverable vessel, I think. Tankers do not turn on a dime. The destroyer captain was responsible for ensuring that he did not collide with anything. he is toast.

[GATOR NAVY]

The more-maneuverable vessel is supposed to give way to the less-maneuverable vessel, I think.

Although there are situations where that is applicable, in general it's not that simple. Here are the rules if you care to peruse them Navigation Rules International-Inland.

The destroyer captain was responsible for ensuring that he did not collide with anything. he is toast.

That statement is correct.