I believe Dulos was counting on the evidence of Jennifer's murder being destroyed via that garbage dump. He obviously took EE's red truck, not thinking it would be tied to him as it has been. IMO Jennifer was rolled up in the large rug Dulos took from her Suburban, so that what was found in the Tacoma was leakage. Jennifer's body was not lying loose in that truck, and he thought the rug would absorb any forensic evidence of her presence in that vehicle. Dulos had not considered he would need to clean that Tacoma until after he placed and removed her body from it.
This theory would explain why Dulos put that rug against the wall during his Albany Avenue run. It would also explain MT's response to LE about the blood found in the Tacoma. Dulos was not anticipating how messy it was going to be during his preplanning. He realized he needed to get that truck clean only after he removed Jennifer's body from it. The fact that he knew there was evidence in that truck makes me think it was at least noticeable to him.
IMO Dulos' missteps originate with his belief that LE would be fooled by the Suburban's location in the park. Why did he park the Tacoma and then leave that SUV where he did? I believe he did so knowing he was going to transfer her body to the Tacoma via the Suburban AND thinking LE was going to buy his Gone Girl fantasy.
I've said it before and I will say it again, the only person who thought the GG story line was going to fly was Dulos ( and perhaps now his attorney). That "theory" was created by Dulos IMO. I noticed that as soon as Pattis was in the case, he started beating the GG drum. No attorney, no matter how "creative" would come up with that theory on his own. So where did that theory come from?
As soon as he came into the case, Pattis immediately began crowing about Dulos' rock solid alibi, the fact that his phone proved Dulos was in Farmington the entire morning on the 24th, and that ridiculous GG theory (which, by the way, he still seems intent on raising). All of these supposed 'facts' were provided to Pattis from someone and that someone is Dulos.
If we begin with the hypothesis that Dulos believed LE would think, at least initially, Jennifer had been abducted in the park, or had parked her own vehicle there to make LE believe she had, Dulos' actions with the Tacoma make more sense. He thought his use of the truck would conceal his presence in New Canaan, not anticipating all the ways he would be linked to it. He definitely never considered all those recorded videos or even what evidence would remain in that truck. He had to ad-lib the need to get that truck cleaned and we all know how bad Dulos at ad-libbing when things didn't follow his Murder Script.
He is also a reportedly domineering person, quite used to getting his way and I am sure he was not happy when EE insisted on retrieving his truck before Dulos was ready for him to have it. EE is a hero in many ways, not the least of which was taking his truck home on the 24th; I feel certain Dulos was quite adamant that he should be allowed to keep it.
It is at this point when MT clearly is involved in a substantial and knowing way. Her big, big problem is leaving the scene of 80MS with the EE's keys. At least at that point in time, a 3d party will testify that she left with the keys to the Tacoma with no apparent reason, except the fact that Dulos did not want EE to have that truck over the weekend.
As spacey as MT is trying to appear, she HAD to have known something funny was up at least at that point in time (I believe she knew prior to that time, but do not know when she obtained actual knowledge). As you note afitzy, there had to have been some discussion between those two about why Dulos wanted her to take those keys (which EE says he had previously seen sticking out of the door of the Tacoma when he arrived at 80MS). I have no doubt LE is now bearing down on this very question with MT.
Dulos had planned this murder out in great detail IMO. His planning dd not take into account, however, the many ways a so-called perfect murder does not go according to plan. Because LE did not fall for his ridiculous GG fantasy, one plagiarized from a bestselling novel for goodness sake, it acted in quickly, much of the evidence Dulos believed would be gone was retrieved.
Dulos went to Dr. Farber's condo, fulling believing he was going to take those kids and go on his merry way, with no consequences for the cold-blooded murder of their mother. Once again, he over-estimated his own brilliance and under-estimated the diligence of LE. Had he succeeded in getting those children, I believe he would be in Greece with them right now, with no intention of every returning to this country to face prosecution.
One final thought. I asked colleague whether she thought the C Team would be monitoring a site like this and she responded."100% guaranteed." Apparently, in Anthony there was a person whose job it was to mine social media for purposes of jury selection and theory of defense preparation. I suspect Pattis lacks the resources Baez was able to shake loose (which is a story unto itself), but you can be sure someone is trying to keep up with the comments here.
Such monitoring does not concern me at all because we are discussing publicly available facts. If our comments are being read, however, I would like to return Mr. Pattis' comments to him."Bring it on!" His MN client is NOT going to get away with murder. Not this time.
Simply, if we arm chair sleuths have his number based on our limited knowledge, Dulos' days as a free man are coming to an end soon. He may want to get in some good water skiing, despite that pesky ankle monitor (which I predicted the judge would refuse to allow him to move), because he most assuredly will not be able to ski where he is headed!