Here is my
speculation on the suffocation theory.
The article says "a doctor
at first thought that Max Shacknai, son of Jonah Shacknai may have been suffocated". The phrase "at first" implies the suspicion was later dropped.
So why did the doctor initially think MS was suffocated? (My speculation follows) When MS was first admitted to the hospital, no one would have known or even guessed he had an unplugged spinal cord. An unplugged spinal cord is very unusual and can't be identified until thorough examination is completed. If the doctor did not know about the unplugged spinal cord, he could not have thought of the chain reaction as follows:
unplugged spinal cord -> cardiac arrest -> deprivation of oxygen in the brain (swelling brain). This chain reaction is a sure thing confirmed by many medical professionals who examined the AR later.
ER doctors see tons of fall injuries. They are not normally accompanied by cardiac arrest and swelling brain. Thats why there is a note that inconsistency existed between the visible fall injury symptoms - fracture on the forehead etc. - and the sign of oxygen deprivation in the brain.
So what would be a much more common cause of cardiac arrest and swelling brain (which indicated oxygen deprivation)? The most common cause is suffocation. It was more likely and reasonable for the doctor to think the child was suffocated than to think that his spinal cord was unplugged, which is extremely rare.
Doctors in ER or any other divisions of the hospital are not forensic pathologists. They dont have the expertise in determining cause of death. That's why the cause of death has to be determined by the forensic doctor. Strangulation (where the victim's neck has been compressed) and suffocation (where the victim's nose and mouth have been covered by objects such as pillows or duct tapes) are detectable upon autopsy (
http://www.enotes.com/forensic-science/asphyxiation-signs). And the bottom line is that the forensic pathologist did not find anything in the autopsy to support such a theory.
Since the Shacknais are resourceful, I think they probably have hired professionals to double or even triple check the pathological findings of their beloved son.