Beckett drove Castle and her down to the last known address of a friend of Edward Kane who bought the warehouse a few years ago, three years after he died.

"Police! Put your hands where I can see them!" yelled Beckett as she kicked down the door.

"Jeez! I know you do this every time but do you have to be so loud, you could...wake...the dead." said Castle, slowing down when he saw the Doctor face down on a desk with papers littered across it with a butcher's knife sticking straight out of his back.

"Well, there's our guy" Beckett said as she rifled through the drawers and found syringes and their protectors. "Definitely our guy. No poison, that's unique."

"Great, just great. We had a lead and guess where it lead, to a dead guy." said Esposito, exasperated.

"Well, we can have CSU look for prints, see what they come up with."

"The way we profiled this guy, whoever killed him must have at least as professional, so we probably won't find any." said Ryan as he looked around.

There were no weapons except for the syringes. The warehouse was dark and gray except for the lone light turned on over the body. They found skin-tight black pants, shirts, and a few ski masks to complete the set. They also found the boots on him and CSU's preliminary analysis said that the print was the same. Beckett, Espo, Ryan, and Castle all looked for anything that the killer's killer might have left behind but nothing came up.

"So far, we have nothing to go on, so what's our next move, o great detective of mysteries death-related or otherwise?" asked Castle to Beckett.

"For now, we wait."