I tend to think there is something big, such as your description, that is missing with respect to testimony presented during trial. I heard no testimony about what was found on Jodi's computer or her so called messed up hard drive. Something, or several things are missing in this overall picture. JMO - it appears to me the judge has bent over backwards for the DT with regards to what is probative and what is prejudicial. One has to wonder how much actual evidence of misconduct, perhaps felonious conduct, there is related to Ms. Arias. (i.e. no tire slashing could be directly questioned by JM, no questioning the stolen ring, Travis's journals being taken and so on, the list is long). I also think somewhere there is some kind of evidence that ties Gus Searcy to Jodi with regards to the 10 May tape recording, I do believe the two of them were up to something with that. I also think there is something tied to MM other than the forged letters that was not on the up and up so to speak, but again no testimony.
Sad to me, but it appears that just about anything that would give a honest look at Jodi's manipulation or wrong doing other than killing Travis was pretty much left out of this trial. As such, her motive(s) for murdering Travis could not be presented. I realize motive is not a required aspect, however if one exists, I fail to see why a judge should ever allow the facts of that to be excluded. Seems to me evidence of motive is very probative even if it shows the defendent to be a fraud, a thief, or some other delinquent. Especially when the defendent's choice of defense is total character annihilation of the victim.