He does not realize that the killer is his own nephew , Jacen , who has now taken the Sith name Darth Caedus .
Later in his private cabin , Luke breaks down over the death of his wife , knowing that her murderer is still at large .
Luke does not realize that the killer is Luke 's own nephew , Jacen , who has now taken the Sith name Darth Caedus .
Later in his private cabin , Luke breaks down over the death of his wife , knowing that her murderer is still at large .