It started a week ago, though Kate didn't realize how far what she thought was a prank would go. On Monday morning she woke up earlier than usual. She when into the kitchen to make herself some coffee when she heard the mail being thrown at the door with a thump, she slid off her chair wearily to receive it. She gingerly opened the door as she was in her bath-robe and pick up the paper along with some other mail.

She dumped them on the kitchen side and started to look through them.

"Bill, Bill, Bill, hey a letter for once." She said to herself. All it read was 'Apartment 5B' She unsealed it and pulled put the paper to reveal a sentence written in poison pen:

I'm gonna kill them all for what you did, everybody you ever loved

One by One.

For a moment she felt afraid and sick that somebody would write something like that and send it to her, but then she just told herself that it was a stupid joke, probably sent by the kids down the hall that had given her a little trouble previously. She decided to forget it, little did she know that later on that day, she would be regretfully reminded of it.

Kate got dressed and headed out to work. When she arrived at the office she took the elevator to the bullpen. She dropped her purse beside her chair and began to go through her work mail. Mostly the letters were memos, all except for one. She opened it and saw that it was the same letter she had received earlier that morning.

"Whatcha reading?" a familiar voice asked, though he still made her jump.

"Oh, just some stupid threat letter somebody keeps sending me- it's nothing."

"Let me see." He said snatching it from her hands.

"No Tony give it back- give it…" she said trying desperately to take it back from him, even though he'd already read it.

"Oh my God Kate, you have to tell Gibbs about this, somebody's sending an employee of the government a death threat then he's gonna wanna know about it."

"No Tony, don't worry about it it's nothing."

"Nothing? Kate how many times have you been sent this?"

"Including this time makes two, three if you count a couple of months ago when the kids down the hall sent me something similar." He looked at her, as if disappointed she didn't tell him.

"What? I didn't think anything of it at the time."

"Well it's different now." He stated. She sighed, silently informing him that she'd given in and he walked to the elevator with the intention of finding Gibbs, it was a choice between Autopsy or Abby's Lab.