He performed horrendous medical experiments upon Jews and other prisoners as a concentration camp doctor, so why is it no surprise that he found some sort of comfort in a faith that despises Jews in his later years.

One of the most wanted Nazi war criminals, Aribert Heim or "Doctor Death," lived for years as a quiet, pious Muslim in a small hotel on the edge of Islamic Cairo, where he was known as Doctor Tarek.

Concealed in the labyrinthine streets of the largest city in Africa and the Middle East, the man wanted for killing hundreds of concentration camp victims with horrific medical experiments found refuge until his death in 1992.

"He was like a giant, not very chatty but he never missed a prayer at the mosque," remembers Gamal Abu Ahmed, who today lives in Dr Death's former room on the sixth floor of the Qasr el-Medina hotel.

May he and his ilk burn in Hell for all eternity.