There have been a few accounts. You’re right. Remember that Lt. Kallop is only testifying to what he saw personally. And it’s not clear from the quotes whether he’s only referring to the first two houses or all three. Marine IOs were all over Haditha that day so Lt. Kallop is just setting the stage.
Woops, also forgot the latest from North County Times - “Marine 1st sergeant says he pressed for Haditha probe”
http://www.nctimes.com/articles/2007/05/09/news/top_stories/8_58_865_9_07.txt