IMO, the biggest thing that MM changed over the years was his "certainty" of what JS and the kid were doing changed from not really sure in 2001 to "I'm certain JS was sodomizing the boy" in his 2010 statements/testimony.
In fact, this discrepancy of his certainty was illuminated by Roberto during her cross of MM in the 12/16/11 Prelim.
She finally get's MM to admit in court that he wasn't 100% sure of what JS and the kid were doing.
Here's
the link to the 12/16/11 Prelim (MM actually contradicts himself within the same Q&A by Roberto--at first he says he's sure about what he saw then then a few lines down he admits he wasn't 100% sure):
Pg. 72: MM never used the words anal intercourse or anal sodomy when explaining what he saw to Joe. Here's the actual Q & A b/c I think it's important.
Also note how MM keeps saying "I would have told..." instead of "I told him....."
Q: Did you explain to him anal intercourse?
A: No. I would have explained to him the positions they were in roughly, that it was definitely sexual, but I have never used the words anal or rape in this -- since day one.
Q: Right, and you didn't use those words because you weren't sure that that is what was happening in the shower, right?
A: Ma'am. I'm sure I saw what I saw in the shower. I'm sure of that. I did not see insertion or penetration and I didn't hear protests or any verbiage but I do know what I saw and the positions they were in that -- and it was very clear that it
looked like there was intercourse going on, ma'am.
Q: But you would not say for sure that that's what you saw?
A: I’ve testified that I cannot tell you 1,000 percent sure that that’s what was going on
Q: Well, let’s just say 100 percent sure
A: Okay, 100 percent sure
Q: Okay, you can’t say that?
A: No
That is a HUUUUGGGEEE discrepancy
when compared to MM's 2010 statement to police and GJ testimony. You can bet that C/S and Dr. D/JM drilled down to the same thing in 2001 that Roberto did, which was "can you say for sure what JS and the kid were doing?"....and the answer in 2001 IMO, was NO.
That's the ONLY way to make ANY sense of everyone's actions in 2001.....IE.....2001 was treated as a 2 alarm fire -- inappropriate late night shower instead of a 5 alarm fire IE -- MM just saw JS raping a boy in the showers (which is the 2010 version of the story).