In a lengthy Facebook post (Facebook is turning out to be the preferred communication platform among Ukrainian leaders), Marchuk discusses the tactics the rebels may have taken with the bodies, and how that can interfere with the standard procedure of an aviation investigation. The Wire has translated his post to the best of our ability (our emphasis added):

Few words for those who are interested in airplane catastrophes. People who were involved in the investigation of such catastrophes (I was involved twice) will tell you immediately that prolonged storage of black boxes, should be two of them, can nullify importance of their evidence, or even can show false evidence. Specialists know it very well.

I can not and must not give any details. Forced removal of victims bodies 28 (?) by terrorists may show evidence that instructors had arrived and chosen which bodies should be removed immediately. It may be bodies on which, during visual checking of surface penetrating wounds, pieces of the missile or ammunition which shot the plane [were visible.] It is undeniable evidence. Metal and material expertise provide undeniable evidence.

Additionally, it is very easy to find the seat of each passenger based on sold tickets, and if he or she had seat belts fastened, and there were a lot of people like that, based on the character and angle of penetration of missile fragments, it is easy to establish the point of the explosion. And if such penetrating wounds were found in many passengers, and they established their seats in the airplane, and it is not a problem, then the starting point of missile and fragments (that is the point of explosion) it made be detected with precision to few centimeters. Besides that, all fallen parts of airplane must be found, especially parts of the fuselage.

Specialists will attach them on special frame. This frame, one to one, repeats the fuselage of the plane. It is a very important part of the investigation. As a result, the point and size of impact can be very easily and absolutely established. Later, they compared the angle of the movement of airplane and the angle of penetration of the missile (the body of the airplane) and the conversation between the crew members and the ground (one black box) and records of all telemetric aircraft systems (the second black box) and, further, the question of technique.

Based on the size of the destruction, establish strength of charge (BC,) and for BUK it is known, and the trajectory of the missile, and contents of this missile (if there are fragments of the missile in the bodies of victims, and in their belongings, and in different parts of the airplane.) Some ammunition has such a structure that they don't penetrate in the body of the airplane, but explode next to the airplane and in such a case, the whole body of the plane will be filled with pieces of the missile, maybe steel balls for ball bearings (as in the case of C-200.) But for this investigation, it is irrelevant.

I think the terrorists are not in vain to not allow our international experts full access to the site of tragedy (it is 25 square kilometers) and they removed the bodies of the deceased. Other specialists are working there, who know very well how crashes like this are investigated, and they know very well what to take away, what to destroy, or burn on site (well, everything burned already.)

They quickly removed the BUK [missile system], blocking access to site for experts, manipulation of "black boxes" (they are not actually black), this is evidence of attempts to hamper the investigation. Here I have outlined one-thousandth of what is being investigated in these cases. Russia has huge experience with such investigations. But international experience with such investigations is far superior to Russian. Russia understands if an international investigation will get everything everything to establish the truth, the results will be deplorable. Not to mention that Russia as a country gave into the hands of terrorists high precision weapons.