There was an episode from this TV series that originally aired back in
1997. This episode is one where the boy believes there is a monster in
his closet. At the end, his brother disappears after going in the
closet. All they find of him is some articles of clothing he had been
wearing. It turns out that this story was one of the ones based on an
actual event. However, I would like to know more about it. There are a
lot of weird ones, but to this day I just can't bring myself to
believe that one. I would like to know the actual story it was based
on and all the details. I've searched all over the internet and there
are discussion groups for this show, but no one has ever posted the
story behind this episode. I am a huge fan of this show and have been
aching to know the story behind this episode since the day I saw it.

Hello Stacey,

The "Beyond Belief: Fact or Fiction" episode in question is titled
"Kid in the Closet" (Season 1, Episode 2 - June 1st, 1997).

The only clue I could dig up was that it supposedly "[occurred] in
North Carolina":

Creature from the Closet
http://mywebpages.comcast.net/scottandrewh/cftc.html

Other than that, most newsgroup threads on this episode conclude that
even the "true" stories are either strongly dramatized, or taken from
dubious tabloid sources. Nevertheless I hope someone can answer this
question for you!

Search terms:
"beyond belief" boy closet monster
"Beyond Belief: Fact or Fiction" boy closet monster
"Beyond Belief: Fact or Fiction" "Kid in the Closet"