Jolly Roger's story be told.

[Jack I]

'Twas a position Jolly Roger long believed he deserved far more than Captain Jack. But when the captain of the Black Pearl gained the seat - though some whisper it was craftily attained -- Jolly Roger's jealous fury raged towards Jack and he vowed vengeance. Jolly Roger then conspired with a Voodoo witch doctor to settle the score. Together, they schemed to rig a card game to trick Jack out of his piece of eight -- the coin and beads entwined in Sparrow's hair -- a symbol of membership to the esteemed Pirate Brethren.

Jack coincidentally drew the winning hand through a combination of luck and guile. The victory further enraged Jolly Roger and triggered the ill-tempered loser to brutally slay the witch doctor right on the spot. In his final living moments, the witch doctor invoked a vindictive spell on his slayer. Legend has it that the evil curse doomed Jolly Roger to walk the Earth as the undead.
Jolly Roger
As the shaman's body dissipated into dust, Jolly Roger inherited the all-powerful Voodoo forces of his victim and was then transformed into a skeletal beast with empty gaping sockets for eyes and a gnarled fleshless hoof as his leg. Armed with a sinister flintlock and cutlass contraption in place of a limb, he became the heinous abomination now known as Jolly Roger, the villainous leader of an undead horde. The new power granted him the ability to devour his victims' souls and then raise them from the dead with his own supernatural breath. He began to build an army of undead monsters - each creature becoming an extension of Jolly's own dark soul.

Cursed to terrorize the high seas for eternity, Jolly Roger now unleashes his dark powers to raise the rotting remains of dead Pirates to do his evil bidding -- a fate far worse than death. Be forewarned, his abilities are far from being limited to raising the dead. He has inflicted his dark influence upon many natural creatures including: undead alligators, bats, wasps, crabs, scorpions, and deadly stalking tree stumps. They all possess malicious intents akin to Jolly Roger himself.

Those who treasure their lives, souls, and loved ones best steer clear of this evildoer's deadly path ... or pay the price, for he will not rest until he becomes absolute ruler of the Caribbean.

----
I have to give props to who wrote that, it's a nice reason for vengance that doesn't go over the top and actually makes sense.

EDIT: Interesting, never thought news from disney's homepage would end up in the Creative Coffers... mod's decision though,