A/N: Chapter 3 of my story is now up! I don't own CSI:NY or any of the characters. Remember to read and review. Thanks. Oh, and this chapter is dedicated to the memory of my late grandmother. (R.I.P)

Chapter 3- A Major Clue

Danny grabbed the note he found at the scene he had just processed with Flack and grabbed the note from the scene he processed with Lindsay earlier that day. Before Stella could find out where he was going, Danny left the room and went to handwriting analysis. Once Stella had mentioned getting the note analyzed, Danny realized that the handwriting on both notes didn't match. Danny walked into the handwriting analysis lab, where the technician, Gary was reading a newspaper. Once Danny walked into the lab, Gary looked up from the newspaper and saw Danny, who was breathing heavily and holding two pieces of paper in his hand.

"Hey Danny, what do you need?" Gary asked.

"Gary, I need you to analyze these handwriting samples to see if they're from the same person," Danny said, giving Gary the pieces of paper.

"Yeah sure, give me a second," Gary said, putting the papers under a microscope. After looking at both samples for a minute Gary turned around and faced Danny. "These handwriting samples are from two different people. Judging from the loops on the e's in the first sample, that was written by a woman and the other was written by a man," Gary said.

"What else can you tell me about these samples?" Danny asked.

"Nothing much, these were written by a Uni-Ball Vision black ink gel pen. Those are really common and you can get them at every Staples, CVS, Eckerd, Duane Reade, Office Max and basically any other place that sells pens in the city," Gary said.

"Alright thanks a lot Gary," Danny said, taking the samples and leaving the room. Danny then went to the coroner and found Sid looking at the dead body from the scene he had processed earlier with Lindsay. "Hey Sid, I need you to do me a favor."

"Yeah Danny, what is it?" Sid asked.

"Can you look at the body from Borough Park and compare it to the one you're currently looking at?" Danny asked.

"Sure, what are you looking for?" Sid asked.

"I think the body you're looking at now was killed by a woman and the other body was killed by a man so I just want to check out the stab wounds on each and see if that's true," Danny said.

Sid nodded and took out the other body. After inspecting each body Sid faced Danny again. "You're right Danny, this victim's stab wounds aren't as deep as the other one, indicating that someone with less strength stabbed him so your theory about a woman killing this one is correct."

"Alright thanks Sid," Danny said, then he went into Mac's office to tell him the news. "Hey Mac," he said, walking into Mac's office.

"Hey Danny, got any information?" Mac asked.

"Yeah, according to Gary and Sid, we're dealing with two killers, one male and one female," Danny said, showing Mac the notes found at the scenes.

"How was Gary able to figure out it's two different people?" Mac asked.

"He looked at the notes under a microscope and told me a female wrote the longer note while the male wrote the other note," Danny said.

"Then how did Sid figure out it's two different killers?" Mac asked.

"Sid looked at one of the bodies and said the stab wounds aren't as deep as the other victims, indicating someone with less strength stabbed the victim," Danny said.

"Alright Danny, thanks for the info," Mac said.

Danny nodded and went back into the room he had left Stella in to continue looking over evidence. "Hey, sorry for running out on you before."

"Don't worry about it Danny," she said, smiling at him. "I presume you had an important reason and you probably found out something important," she said.

"Yeah, we're dealing with two killers- a male and a female," Danny said.

Stella gasped and her mouth opened in shock. "So you're telling me this psycho going around killing is really two different people."

"Yeah, but according to Sid, only one of the victims was killed by a female," Danny said.

"Danny, did you dust the notes for prints yet?" Stella asked.

"Oh, yeah I totally forgot about that," Danny said, just as Hawkes walked into the room.

"Hey Danny, Stella, anything I can help out with?" Hawkes asked.

"Actually Hawkes, we need to dust these notes for prints," Danny said, showing Hawkes the notes found at the crime scene. "We also need to look through all this information for anything that can help," he said, pointing at the maps and student information.

"The killer left those notes?" Hawkes asked.

"Yeah, one was found in East New York, the other in Borough Park," Danny said.

"We're also dealing with two killers," Stella said, dusting one of the notes for prints.

"You cannot be serious," Hawkes said, dusting the other note for prints.

"I wish I was messing around with you but I'm not," Danny said, looking over the maps and student information from Greenberg University.

"Hey Danny, I found a few partials on this note," Stella said.

"Yeah, I also found some partials on the other note," Hawkes said.

"Hmm, run the prints through the computer," Danny said, staring at the map then staring back at the information about all grad students from Greenberg University.

"Danny, you found something?" Hawkes asked.

"No, it's just something doesn't fit," Danny said.

"I'm just going to run these prints first," Hawkes said, leaving the room.

Danny sat and stared at the map. The first body found had been in Sunset Park. The victim was Luis Morales, a 22 year old Puerto Rican male. The second body found was George Tsakalidis, a 23 year old Greek male found in Astoria. Then there was Shane Williams, a 23 year old West Indian male found in the Flatlands section of Brooklyn. Something had to link all these victims together but Danny couldn't figure out what it was exactly. Danny then took out the information about current Greenberg University grad students and looked at the addresses of the victims. Most of the victims didn't even live in New York, yet they ended up dead on the city streets. At that moment, Stella and Hawkes came back into the room.

"Hey Danny, I just ran the prints through the computer and nothing came up," Stella said.

"Yeah, nothing came up for my prints either," Hawkes said.

"I just noticed that most of our victims don't live in New York. Their mailing addresses are either out of the city or out of state," Danny said.

"So that means somebody must have killed them and has a method of transportation to carry their bodies around then dump the dead bodies," Hawkes said.

"It's easy. Our killer is a taxi driver," Mac said, entering the room.

"Mac, how do you know that?" Stella asked.

"I'm just assuming because if most of the victims are from either out of town or out of state, they need a way to get from one place to another. While mass transit is an option, it's highly unlikely someone who isn't familiar with the streets would take mass transit. Thus, that leaves us with taxis as their mode of transportation," Mac said.

"But there must be at least thousands of taxi drivers in the city," Hawkes said.

"There must be a way to narrow down the list of all taxi drivers in the city so we may have a better idea of who the killers are," Mac said.

"Hey Mac, if you can get a list of all registered taxi drivers, you could compare them to the list of people who applied as grad students to Greenberg University," Danny said.

"That's not enough of a reason to arrest anyone though," Stella said.

"Yeah but it's better than anything else we have now," Danny said.

"Danny, give me an hour or so to get you the information," Mac said, leaving the room.

"So, Stella, Hawkes, any of you want to grab a bite first?" Danny said, realizing it was almost one and he was hungry.

"Yeah, let's go grab something to eat," Hawkes said.

"You guys go ahead," Stella said.

"So Danny, you think we're going to catch the killers before someone dies?" Hawkes asked while they were waiting for an elevator going down.

"I hope we do," Danny said, getting into an elevator.

"I mean its kind of hard to catch someone like that, especially two people," Hawkes said.

"Don't worry about it Hawkes, man is prone to make a mistake. Once our killers mess up, that's when we're going to get them," Danny said.

"I sure hope so," Hawkes said, getting off the elevator.

"Nah Hawkes, we're gonna get those killers," Danny said, seeing a taxi in front of the lab.

"Hey Danny, what are we getting for lunch?" Hawkes asked.

Danny ignored Hawkes because he was busy staring at the taxi driver. The driver seemed to be using a Uni-Ball Vision pen, the one that was used to write the notes. "Hawkes, we gotta talk to this guy," he said, running up to the driver and showing his badge.

"Can I help you officers?" the taxi driver asked.

"Yeah, we're investigating a serial killer and you can help us," Danny said.

"What can I do?" the taxi driver asked.

"I need to see your pen and I need to see the paper you were writing on," Danny said.

"Hey Danny, what's all this about?" Hawkes asked.

"Hawkes, the killers used a pen like this," Danny said, holding up the pen the taxi driver gave him. "A black ink Uni-Ball Vision pen was used to write a note on this paper," he said, holding up the piece of paper the taxi driver gave him.

"Are these pens and paper used by all taxi drivers?" Hawkes asked.

"No, they're only used by the taxi drivers who work for the same taxi agency as I do," the taxi driver said, getting a little nervous.

Danny saw the driver get nervous and he patted the driver on the shoulder. "Hey man, you're being really helpful. We're not going to arrest you. I just want to know the name of the taxi agency you work for and the address."

"Uh sure, I work for Dalton's Taxi Agency. It's between 22nd and 23rd Streets on 4th Avenue in Brooklyn," the taxi driver said.

"Thank you for your cooperation sir," Danny said, shaking hands with the driver, who then left.

"You still in the mood for lunch Danny?" Hawkes asked.

"Nope, I think we have to tell Mac this info," Danny said.

"Yeah, that's a good idea," Hawkes said, going back into the lab.

"Hawkes, screw the elevator. We gotta run up and tell Mac since you don't know how long the damn elevator is gonna take," Danny said.

"Uh, I think I'll take the elevator Danny," Hawkes said.

"Alright see you up there," Danny said, going into the stairs. Danny ran up twenty floors and got off at the lab floor, out of breath. He went to Mac's office and saw Hawkes waiting for him.

"Hawkes tells me you have important information about our case," Mac said.

Danny was still breathing heavily from running up the stairs and he took several more breaths before talking. "Our killer works at Dalton's Taxi Agency," Danny said.

"Wait, how do you know this?" Mac asked.

"We saw a taxi driver using the same pen used to write the notes at the crime scene and we matched the paper he had in his car to the paper the notes were written on," Danny said.

"So you found out he works at Dalton's Taxi Agency," Mac said.

"Yeah, just wanted you to know," Danny said.

"Danny, go with Hawkes to this taxi agency and get the names of each driver," Mac said.

A/N: So, how was it? Chapter 4 will be up in a few days. I promise ;). Leave a review, you know you want to ;). And a note about my grandmother- supposedly, she always told my parents to let her babysit me when needed because she didn't want anyone else to watch us. Her biggest fear was that a babysitter would give me alcohol and I would just pass out. So, it was tragic when she died, but I paid tribute to her memory with a tattoo on my right arm.