That is a really good question, FRiend. I don't know. I admit that part of the saga is where I'm most fuzzy.
I just learned - via another FR post - that the #2 perp went to an ATM and got $800 from the carjack victim's account... first I had heard about that.
I heard they stopped at three ATM, but only one withdrawal was successful.
However, multiple stories indicate Officer Collier was found dead in his vehicle near the location also described as the Mercedes carjacking.
Did the perps steal the MIT police car with mortally wounded Officer Collier in it and drive to the Stata Building location near Main and Vassar Sts, where they carjacked the Mercedes SUV?