(I forget your previous moniker, but it will probably come back to me at some point.) Anyway, as has been pointed out to you before, Crossan was speaking as a scholar, and the literature suggests crucifixion victims were usually left on the cross, or unceremoniously dumped in mass graves.

It's true the ONE piece of archeological evidence of a crucifixion victim was discovered in an ossuary. IIRC the victim is thought to have been  a member of a prominent family, so that may explain why his body was permitted to be recovered.