Kerry rescued James Rassmann, who went overboard as a result of an explosion. Rassmann appeared by Kerry's side during the Iowa caucus campaign and at last week's Democratic National Convention, telling the story of how Kerry pulled him out of the water while his boat was under fire.

As in the case of the Silver Star, it was [Kerry's former commanding officer, Lieutenant Commander George] Elliott who recommended Kerry for the Bronze Star.
[...]
Elliott, in the interview yesterday, said that based on the affidavits of the veterans on other boats, he now thinks his assessment about the Bronze Star and third Purple Heart may have been based on poor information.

In one affidavit, for example, Van O'Dell, who said he had been in a boat near Kerry on that day, declared that Kerry had "lied" about what happened on that day and said that Rassmann was not under enemy fire when Kerry pulled him aboard.
[...]
Rassmann, reached by telephone yesterday, said he has never had any question that Kerry deserved the Purple Heart. He said there were two separate events: One was earlier in the day, when he and Kerry blew up a rice cache, and the explosion caused some of the rice to hit Kerry
[...]
Either way, Rassmann said, Kerry deserved the third Purple Heart...