As I understand and recall, Haas had said that finger bones showed damage from the nails that were still with them in the ossuary. He had also talked about signs of other damage, suggesting at least a severe beating, and he said that the angle of the cut in the neck and jaw showed that the prisoner had already gone unconscious at the time he was beheaded. Haas had no doubt that the prisoner had been scourged and hung.DCHindley wrote: Personally, I am inclined top think that Cassius Dio was wrong about the method of execution. He may have heard that the method used "had never before been done to someone of royal family" but not knowing that it was by beheading, may have thought that it was by scourging. Beheading was the manner by which death sentences were carried out on Roman citizens, while non-citizens were scourged and/or hung on a cross. So, using the analogy that a royal scion equated with a Roman citizen, he assumed that the execution could not have been by beheading, but was rather carried out as if he were a pretender = rebel, which the Romans routinely scourged and hung on a cross.
DCH
This is very hard to square with Smith's insistence that the skull was of an "elderly" person and with her belief that the prisoner was a woman. Supporters of Haas/Grintz may be on solid enough ground in supposing that Mattathias Antigonus was of slight build, but the age of the person at time of death is the sticking point. The chronology that you laid out above doesn't support a claim that Antigonus was anything near "elderly." Right now the tomb has been resealed and the owner opposes digging up bodies, so I don't see any chance of further study of the bones any time soon.