“I do not go behind people's backs and torture them. I like my enemies to look me in the eye and see the depth of my rage.”

Once upon the Big Easy

Johnathan Timothy Cates is a former marine turned Mercenary, who shortly thereafter turned hunter. His military career is extensive, having joined the Marines straight out of high school and sticking with it for most of his adult life. He made it to Staff Sergeant before his career ended with an honorable discharge due to severe mental health issues. After his time in the military, John found himself unable to leave the life behind and went underground, so to speak, becoming a mercenary for hire after he watched the man that he was in love with at the time die at the hands of another.

On the Job

It was during a job that he was introduced to Supernatural. The hit that he was meant to perform turned out to be a vampire, the leader of a nest no less and though John managed to kill the thing after removing it's head, when he saw that the nest had been taking civilians and basically using them as human blood bags, he disappeared once again in order to begin hunting the creatures that threatened the country that he had worked so hard to protect for so long and has been hunting ever since, moving from town to another, one state after the other, fighting as many demons and creatures as he can take down in order to help the cause.

Associations

After the first incident in which Sam Winchester had to call all hunters in to assist in killing Lucifer, he signed up with The Association and has worked for Amaya ever since. Alongside working with the woman, he wound up meeting her brother in law, albeit by complete accident, at a club that he was meant to meet the woman at. They got to talking and he came to realize that he liked the man. It wasn't long before he found himself stopping by the club after work, talking to the man and watching him dance. He was smitten but found himself backing off when he admitted that he wasn't ready for another relationship.

Change is good.

John waited, still coming to the club occasionally before he was finally given the chance to sweep Marki off his feet. The man did, in true fashion but wound up wrapped around his little finger as well. He fell hard and fast for Marki, sharing everything with the man, including the fact that he had been a Mercenary prior and why he had left that life. Their life would not be all rainbows and roses, however. They had a lot to deal with, especially after Marki was taken, the resulting injuries causing John to become far more protective. This did not stop him, however from proposing to the man.

The more the merrier

It wasn't long after they got engaged that a blast from John's past came knocking so to speak. While waiting for Marki to get off work at the club that he worked at one day, he found himself face to face with Dimitri Ivanov. The two had been together after he got out of the army and it was losing the man that had caused him to go off the deepend in the first place. Seeing him again, for a brief moment he was torn but quickly recovered when he had realized that he simply could not bring himself to hurt Marki. Little did the man know that later on, the two would actually start to hang out and eventually become friends. The more the trio hung out together, the more they realized that there was something more between all three of them and eventually agreed to bringing Dimitri into their relationship.