why did they kill off Boone?

i just finish watching Season1 on DVD...i don't understand why Boone had to die.

I think thats pretty clear..
The reason boone had to die was because that would be the only way shannon would realise she loved him..

Although.. there are some other theories:

Quote:

Alarm bells sounded for Brigit Wampler while watching an episode of Lost one day last spring. She noticed that Boone, a pretty young man stranded on the island with his sister, was wearing a red shirt. Of course, Wampler knew, he was going to die.
She remembered the old Star Trek cliche that any character who didn't have a last name and was wearing a red shirt would be dead by the end of the episode. Sure enough, two weeks later, Boone was checking out a plane trapped in a tree canopy when the plane fell to the ground. Boone was killed....