22 Reasons enough to believe the Somerton Man didn’t die where he was found.
“The lividity around the ears and neck was perhaps surprising in view of his position, but it was explainable. It would depend on how much the head was supported, it may have been slight, perhaps no more than one’s head supported on a pillow.”
Professor John Burton Cleland LQMP.
“I have been discussing the circumstances on the footing that the body found on the morning of the 1st December was that of the man seen in the evening of the 39th November. But there is really no proof that this was the case.”
Coroner Thomas Cleland.
“The only missing fact which would have made me confident (that death was caused by a glycoside) is the absence of signs of vomiting, but there is sufficient variation between individuals to account for it or he may have vomited before he took up his position on the seawall, but I confess that I might have been more confident in drawing a frank conclusion had there been signs of vomit somewhere about him.”
Sir Cedric Stanton Hicks, Professor of Physiology and Pharmacology at the University of Adelaide.
“If it (the poison) had not been self-administered, and the body brought there (Somerton Beach), that would remove any doubts as to the time at which death took place, as well as any other difficulties.”
Coroner Thomas Cleland.
The Somerton Man 
Alan, the suitcase and contents were believed to belong to SM .. your theory suggests otherwise.