I encountered Tallboys on Lady Boyle's Last Party, blink-jumped behind them and assassinated them, making the frame drop to the ground. I could not, however, find any body to hide left amongst the rubble. Also, as I dropped back down to the ground, I fell on a guardsman, and assassinated him. His body still remained, so I was very confused by this.
Which leads me to the question, do tallboys count as found bodies, and if so, how do you hide them?
UPDATE: Apparently the body would disappear with Shadow Kill, but then does the wreckage of the tall boy count for chaos if found?