Kukuroo

A long time ago I have a account, way back when you had to have a first and last name to log onto SL. Problem is, i cant seem to remember the last name. I requested that it be send to the email account it was attached with, but I havent used that email in such a long time that it asked me security questions. Which i could not remember. (stupid me) I know the first name and how to say the name (im pretty sure) and just want to log onto my old accont. I spent time and money making that avater just how i wanted it. Now i would like it once again. This is becoming a major pain. Please help? I believe it to be Courtney Krillen/Killen/Krallion........ I KNOW it was Courtney K(something)