By Arwa Damon
BAGHDAD, Iraq (CNN) -- "There are the bloodstains on the wall, and here it is dried on the floor," Abu Muhanad said as he walked through a torture chamber in a Baghdad mosque where more than two dozen bodies have been found.
"And here, a woman's shoes. She was a victim of the militia. We found her corpse in the grave."
Chunks of hair waft lazily across the floor in the hot Baghdad breeze.
"This was the torture room," said Muhanad, the leader of a U.S.-backed armed group that now controls the mosque.