The Danish police didn’t know his real name. They just knew that in ‘97, three men were found dead in Nyhavn — throats slit, and beside each body, a small ivory elephant.
It sounds like you’re asking for a story that connects (a Danish crime novel by Kurt Aust , published in 2005 — though the title is known) and the year 1997 with the abbreviation OK (perhaps OK as in Oklahoma , okay , or Russian “OK” as in Oblast Kirov or ОК ?) and RU (Russia). lykkefanten 1997 ok ru
The Lykkefanten vanished after that. Some say he died in a fishing accident off Murmansk. Others say he lives in a dacha near Vladivostok, waiting for the right buyer to call again. The Danish police didn’t know his real name