A/N: This story begins August 2. It is a crossover between Criminal Minds and CSI. Please point out any people out of character; I'm not that familiar with CSI.

Disclaimer: Unfortunately for me I do not and never will own Criminal Minds or CSI. Just the plot and unsubs.

"We need help," stated Detective Jim Brass, "Five murders and there is no evidence." Grissom sighed reluctantly. "Look, I know you don't believe in profiling but we've got nothing. Now I didn't want to call them without first receiving your approval."

"Give me some time," Dr. Gil Grissom replied.

"No offense, but we don't have time."

"Alright, first let's ask the others, I don't want to call in the Feds without alerting everybody first."

"Deal."


Grissom entered the room to see his co-workers, his team, in various places around the table. Nick Stokes, Warrick Brown, and Greg Sanders were standing at one end of the table talking. Sara Sidle and Catherine Willows were sitting together about halfway down the table, also talking. Nick looked up, noticing his boss. "What's the meeting for did we find any new evidence?"

"No, I'm calling in some help."

"Who?" Catherine asked.

"The Behavioral Analysis Unit of the FBI." He waited for the uproar to calm down.

"Come on Grissom, I know we've got nothing but do you honestly believe the Feds will be able to do any more than we can," Warrick complained.

"What's the, what did you can it? The Behavioral Analysis Unit?" Greg asked. He appeared to be the only one not concerned about the Feds, just curious.

"They're profilers, they study human behavior." Well, at least Greg would get along with them when they showed up.

"Do you honestly believe in that kind of thing?" Sara asked, not even attempting to mask her disbelief.

Grissom sighed inwardly, he didn't, he knew Sara didn't, and he figured the rest of the team, besides Greg, was at the very least skeptical. "This isn't open for discussion. Brass is calling them now. If they take the case they will be flying in tonight." He sighed inwardly again and left the room.


"Conference room guys, we got a case," Agent Jareau, or JJ as she was commonly called, announced on her way to inform their Unit Chief, Agent Aaron Hotchner, or Hotch. As soon as she saw everyone in the conference room she began her presentation. "Last Sunday, July 27, Simon Jones, age 28, was found dead in his own back yard. Coroner reports showed he was killed on the same day, beaten badly then his throat cut." The photo showed a young male Caucasian lying beaten and bloodied on the grass. "July 28, Mary Johnson, age 63, was also found in her back yard, same M.O." This photo showed an elderly African American female. "Over the last three days three more victims have been found. Teresa Jude, 18," this was a young Caucasian female, "Whitney Jefferson, 27," a young Caucasian male, "and Terrance Abbott, 45." The final photo was a middle-aged African American male.

"So, other than M.O. what's the connection? How can we even be sure this is the same guy?" Supervisory Special Agent Derek Morgan asked JJ.

"Well even though they range in age, race, and gender the victims did all have one thing in common," reported JJ, turning back to her presentation. "None of them were native to Las Vegas. Simon Jones was from South Dakota; Mary Johnson was from Missouri; Teresa Jude and Terrance Abbott were both from Tennessee; and Whitney Jefferson, from Wisconsin. Also, he left a note at each crime scene that said 'Who's next?'"

"Okay guys, wheels up in 20, we've got serial killer in Las Vegas and if he keeps up his pattern there will probably be another body today," Hotch told his team.


"So what do we know about this unsub?" asked Hotch, trying to get the disscussion started as they all got comfortable on the plane.

"Well, this guy is clearly disorganized," Morgan commented.

"I agree, he picks a random house and then mercilessly beats his victims," Supervisory Special Agent Emily Prentiss added.

"I'm not so sure," Supervisory Special Agent David Rossi questioned, "He leaves no forensic evidence behind whatsoever, and all the victims weren't from Las Vegas, if he found that out before he killed them that suggests organization."

"So maybe he has a partner, or Dissociative identity disorder, all I'm saying is, the unsub who killed these people was angry," Morgan countered.

"That's most likely the case, our unsub is disorganized and angry, but there's another unsub tells the first unsub where to go and who to kill," Rossi agreed.

"The second unsub most likely doesn't participate in the killing. He's manipulative, probably provides transportation for the killer, tells him who to kill, and when," Prentiss surmissed.

Hotch looked over at the youngest member of their team, Supervisory Special Agent Dr. Spencer Reid, who looked deep in thought as he looked over the case files. "See something Reid?" He asked.

"I don't know," came the response, "I don't think these victims are that random, there's something about them, I just can't figure it out yet."

"Keep working on it," Hotch said as they prepared to land. "We'll be meeting with the CSI team when we land. If there is another body Morgan and Prentiss you're with me. Rossi, Reid and JJ, I want you guys back at the lab. JJ, contact the press see what they know, Reid and Rossi, keep working on victomology, call Garcia if you need to."

"Wait, the CSI team?" Morgan asked, "Why are we working with them?"

"Las Vegas has the second biggest forensic lab in the nation, the CSI teams handle most of the cases," Hotch answered.


The next chapter the two teams will meet. Review!