This is from the fuselage, regarding the next person who dies on Lost...
This person is intentionally killed, although the reason will not be known to us immediately. This is not a LOST murder mystery though, it's more of a why'd they do it. The person who dies is a crash survivor. The person who kills them will not be revealed until the November sweeps week episode (of course). The network will dangle this information for a while to build anticipation. (Another "who shot JR" moment.) The full time-line is: Death in Episode 6. Rerun the following week. Then episode 7 which is mostly told in flashback from the tail-section point of view, but ends with a teaser of who killed ________. Then Episode 8 which reveals who the killer is. Look for this person to deceive everybody except for a select few.
Here is the link to the thread on thefuselage.com:
http://thefuselage.com/Threaded/showthread.php?t=22864