Disclaimer: I don't own neither NCIS nor Supernatural!I just really love these two series and I thought it would be nice idea to compine them!I hope you enjoyt this story!

It was a normal day in the office. Everyone had arrived but one was missing, and it didn't go unnoticed from his colleagues.

"Of course. Tony is always taking his time to do things." Ziva said as she hit her desk "who does he think he is?"

"Relax, Ziva….we don't have a case and as long as Gibbs isn't here it's good." McGee said while he was doing his job in the computer.
At that exact time, the elevator doors can be heard and the melodic voice of the one and only Tony Dinozzo is heard.

"Hey Ziva,McComputer!" with his big sarcastic smile he goes to sit at his office

Ziva started staring him with a obvious smirk and after some minutes of silence she decided to break it as she couldn't stand his obvious smile without an explanation:
"Why so happy Tony? Do you want to enlight us about your previous day or will it make us regret that we asked you?!". McGee just left a chuckle trying not to think what Tony would say. With a loud dreamy sigh Dinozzo started talking:

''Oh, it was really nice! You know how everyone is searching to find something to do to fill his day and when he finds it nothing will make him happier than this" talking like he's a poet and he stands up slowly, staring at the two of them with a happy face "That was yesterday when- "

"Dinozzo, I guess you can tell the story later. Grab your gear, we have a dead marine…" Gibbs said while getting inside the room. Without waiting anyone to comment, he got his gun and badge and headed towards the elevator, expecting the other three to follow him. McGee, Ziva and Tony looked each other for a moment and then quickly they got ready to follow their chief towards a sight that, honestly, they haven't seen again.

The scene was hideous. Not only the killer had killed one of their own but his neck was shred into pieces. Blood was everywhere and as Gibbs found, there was a trail of blood that shows either that there was another victim or that the killer, or the killers, when they left, they were full of blood, their own if the man fought back or his own. And the most horrible thing was when they had returned to the station and Doctor Donald Mallard with his assistant James Palmer told Gibbs how this poor man died.

As it seems, the victim was killed by extreme blood loss and this wasn't quite a good thing as it means that he was alive and suffering by whatever the killer did to him. And the strangest part was that there was no bullet wound… neither his neck was cut with a knife. His neck was bitten and that was another odd thing as his death sure couldn't be by a dog or an animal because they found footsteps getting out from the crime scene. All the other evidence that should be examined was sent to Abby, the forensic scientist of NCIS.

All these facts had spread all over the station which only lead director Vance to make a speech to Gibbs, which he really didn't need, about the necessity of finding that killer and getting rid of him before the news got out about this murder.

At the office, Tony, Ziva and Timothy had started their own talk about how the man was killed and adding their thoughts about that.
"Well, that made me remember why I wasn't so keen on crime scenes…'' McGee said with disgust.

"It can't be a man doing that. Who could do something like this?! I mean the bitten neck part?"

Tony found the right time, then, to shiver and with a smirk add "If we were in the classic vampire-werewolves movies, it would be understood! Maybe Dracula came to make an appearance and now we should wait for Van Helsing to stop him!" before he could continue adding things from different vampire movies a slap on his head stopped him and the voice of Gibbs was heard:

"I don't care about this film you are referring to, Dinozzo, I need information about the navy marine. Go…"

And with that they all started to inform him about the name, the family and every information they could find about him. As it seems his name was Leo Henry Sullivan and his only family was a sister who was too far away and she was now headed towards their town to ''deliver'' her brother and get asked questions about enemies Leo could have had.

The hours passed and the questions were beginning to increase by the time they have ended talking with any person Leo knew and all were saying the same thing. This marine was a good guy, never did something to be questioned by his superiors or his team and he was a sincere man. His job, of course, made him have some people that he fought but no one could match the killer or be able to kill him so brutally. So, their next plan was to follow his exact movements the previous day that he was killed and go, the next night, to the bar where he was seen leaving by friends that never thought that they wouldn't see him again.