Inyo

Brick Holmes, was a alias taken by Inua, a ancient Mayan who through a deal with a god, lived over a thousand years.

History
In ancient Maya about a thousand years ago, he was a young proud and very successful athelete, he loved his time in the sun, and never wanting it to end, he made a deal with the Mayan god Cacao, through the high priest for immortality (as well as enhanced physical atributes such as strength, durability, speed and stamina), in exchange for two sacrifices a year, one in the time of planting, one in the time of harvesting.

And thus he lived for centuries, traveling from culture to culture, being any form of sportsman, he could find. And excelling in them all, he lived only for the game. However in the 1940's possing as a boxer called Kelly, he met Betsy, he fell in love with her.

She did not learn the truth about him till she began to age and he didn't, however by this point the two were deeply in love, they ran about together, every ten years or so he would emerge, with another look and another name and be a different sort of athelete. However this but great strain on his marriage, as after she turned forty, Betsy had to posse as his mother. Eventually in 2012 after over a thousand years, he had changed, he was no longer just for the sports, he loved Betsy so much, and seeing that her time was coming to an end, he desided he didn't want to live on without her, thus he drove his car off a cliff, thus killing him and ending his long life.

Legacy
However this was not the end, earlier on, thinking he would never die, he signed up to an organ donars plan, thus eight pieces of him were donated to other people, and the spell of Cacao passed on with the organs, granting each of them the same deal that Inua had. It also dramatically changed them, and they all began killing to keep up with the sacrifices.

Upon investigating, Sam and Dean learned from Betsy (now known as Elenor Holmes) that the key was Inua's own heart, if that died that all the others would die. Arriving at the location of the person who had gained the heart, Randa Moreno, they tried to kill her, however were ambushed by Peter Hayes and Jimmy Tagg (each had got a transplant and had joined in the deal to get Immortal).

With there enhanced physical atributes they managed to over power the two, and with the other two holding him down, Randa tried to rip out Dean's heart, however Sam recovered, and managed to distract Peter, now with his arm free, Dean pulled out a knife and stabbed Randa in the heart, thus killing them all and ending Inua's legacy.