The End (1) - S6-E17
Trivia: The Oceanic employee delivering Jack's father's body has a name visible on his navy blue overall - it is Bocklin - Arnold Bocklin is an artist famous for painting "Isle of the Dead" in 1880. (00:04:00)
Trivia: This was the first episode in which none of the series regulars appear in original footage. Matthew Fox, Evangeline Lilly, and Terry O'Quinn appear in archive footage from season 1, and the rest of the episode features only the credited guest stars.
Answer: He was eating a peice of an orange with the skin still on.
XIII