where was Leonard killed inside Karbala?

Tonight I tried to pinpoint specifically where Leonard was killed within Karbala.  Unfortunately, I wasn’t able to locate the Mukhayam (sometimes “al-Mukhayam”, or “al-Mukhayyam”) Mosque on the map, other than its proximity to the Imam Husayn and Imam Abbas shrines.  I have drawn a rough region narrowing the location as far as I had evidence to do so.  If anyone has more detailed information, please help me correct this map (research available on map upon clicking the region).