linked - Investigating the Terror

OIG: The damage to the body?
AGENT WILLIAMS: That's correct. I would have expected --
OIG: And you say that based on what, sir?
AGENT WILLIAMS: I know where the bodies were found. I know
the damage to the body. I know the debris that was found all
around the body. I know where that debris originated before the
blast.
Concrete blocks for a cinder block wall, something of that nature;
an unopened box of photocopy paper; these items were removed
from their original position less than 10 feet away from the seat
of the blast and thrown to an area where they finally rested near
the body.
The damage to those objects suggested to me that if it was
18,000 feet per second, they would be smaller, they would be
torn or ripped like the pipe that's shredded like paper, and the
bodies would have had slightly different damage.
OIG: What kind of damage?
AGENT WILLIAMS: They would have been hit with smaller flying
objects.
OIG: Would the arm have been ripped off in a different way?
AGENT WILLIAMS: Yes. Their bodies would have shown different
physical damage.
If, for example, I had two bombs, one was smokeless powder,