Henry Lopez (Codename Z) is not at the above co-ordinates. He is the third of Doctor No's henchmen and helped Kempton Bunton "obtain" Goya's portrait of the Duke of Wellington for Doctor No's art collection. BD Eye knows his location but will only reveal it once you give him the correct values of Z1, Z2 and Z3.
There is nothing at the listed coordinates.
Links to other caches in the series:
¤ Jacob's Pillow
¤ BD Eye
¤ Charles Edghill
¤ Eric Coverly
¤ Henry Lopez
¤ Adrian Robinson
¤ Doctor No
¤ Clue 1
¤ Clue 2 (Pink Ribbon)
¤ Clue 3 (Queen's Portraits)
¤ Clue 4 (Artist's Journal)
¤ Clue 5 (Artist's Palette)
¤ Bonus - Lucifer's Musical Box
¤ Bonus - Major Ursa's Gadget Stash
Part of The Final Revelation series of 66 puzzle caches.