Analysis of information sources in references of the Wikipedia article "Πολιορκία της Ιερουσαλήμ (1099)" in Greek language version.
But these were small matters compared to what happened at the Temple of Solomon, a place where religious services are ordinarily chanted. What happened there? If I tell the truth, it will exceed your powers of belief. So let it suffice to say this much, at least, that in the Temple and porch of Solomon, men rode in blood up to their knees and bridle reins. [quoting eyewitness Raymond d'Aguiliers]
One of our knights, named Lethold, clambered up the wall of the city, and no sooner had he ascended than the defenders fled from the walls and through the city. Our men followed, killing and slaying even to the Temple of Solomon, where the slaughter was so great that our men waded in blood up to their ankles....