I was killed at the tree by Shura. When I return my corpse is gone. As I look for it I run into the spirit by accident (I didn't die there the first time) and die. I run back again, search all of the tree, no corpse. While I search I see "someone" sacing contents from the floating chest I had. Thus there must have been a corpse at some point for someone to loot it.

I ask where my corpse are and get the response "What did you expect?". I pray about it and an imm looks into it but only sees that I died but no creation of a corpse. He asked me to bugboard it.

My comp crashed later when I spoke with the imm so no log left on the deaths and the ticks surrounding it.

System time was roughly: 13:50 (CST) If it helps there should've been the following in the corpse:
Darkened platemail
blood encrusted mithril badge
shield of darkness
viper amulet
lobster girth
a floating chest

No idea if any of this helps.

There is still one way to completely destroy a corpse, and it would make sense based on where you are.