RC-1207 ("Sev")

Sev, called RC-1207 by nerds or hardcore Karen Traviss fans, was a clone that died. Many people mourned his death.

Behind the Scenes (Yes, we have a BTS too)
Some people that did not know of his death were shocked when they inadvertently learned of it by clicking on his Wookieepedia page. But that's really useless and in the past.