Greg was sitting around in the DNA lab. For a change, Julian didn't mind. He was busy working and Greg wasn't talking to him. Also, after what Julian said to him, Greg wasn't as annoyed by Julian anymore. He showed that he had a human side and Greg appreciated that. And he was busy thinking about Nick, anyways. He felt really bad for telling Nick off, but he thought it was long overdue. He was done being everybody's doormat. He was tired of feeling abused. But Nick normally didn't make him feel that way. He remembered now what it used to be.

Nick had always been a good friend to him. He always had his back, they had fun together and trusted each other. What happened? How could it come to this? Was he being too harsh with Nick? He's going through a hard time, too, he would've never said something like that if it wasn't for everything that's happened before.

Great! He thought. Now HE felt guilty. Again. Only a few days ago he wanted to be there for Nick, and now he pushed him away because he felt pushed away? It all didn't make any sense. Why was it so hard for them? Why couldn't they just get back to how things were? It all came so easy. And now? It was hard.

"There you go." Julian handed Greg the DNA results from the cigarette butt.

"Thanks," Greg said and stormed out.

Nick was sitting in front of his locker. He wanted some time by himself and this room was usually the only one at the lab where he could be alone for a few minutes.

Greg entered. "Just shut up and listen to me for a moment," he said determined.

"...Okay," Nick replied surprised. He didn't expect to see Greg until the next shift. He actually prepared to give him some space, and now he was here talking to him.

"What you said earlier was harsh. It was hurtful and mean and not true."

"I know, I..." Nick said before being cut off by Greg.

"I said shut up!"

Nick nodded apologetic.

Greg continued. "It really hurt me that you would even consider thinking that I might have ANY connections to Dunbrook! To think that I'd let Monroe get away without having a good reason... It really made me wonder what's wrong with you!"

After a longer angry monologue Greg calmed down. "And then I realized... I know what's wrong with you."

Nick looked surprised up to him.

"We've both been through a lot in the last months. We cheated death a few times. It's no wonder you act a little off. I did, too. But the difference between us is that I had someone to help me snap out of it. At least I think I did." He had a faint smile on his lips. "And now I'll help you get over this. When you're ready... And if you want me to help you. It's up to you..." Greg turned around.

"...Wait!" Nick said hesitant. "I wanted to...Thank you... For saving my life, Greg," he said sheepish.

Greg turned around a little to look at Nick, gave him a faint smile and walked off.

Ray rubbed his tired eyes. "The cigarette butts have officer James' DNA on it?"

"I'm not sure what to make of it." Greg handed Ray the report. "Maybe they've been lying there for days, maybe James did come back to the scene. Or Wood placed them there."

"So they're useless evidence?"

"I'm afraid so. We have absolutely no lead whatsoever about their whereabouts. We don't even know if they're still in Vegas," Greg said while Catherine was walking up to them.

"I can tell you where Green is," Catherine said while putting pictures on the light table.

"Green? Is that the fourth officer?" Ray asked.

She nodded.

"Catherine..." Greg looked at the pictures. "Is that him?"

"Sara just sent these pictures. When she heard that the victim at her crime scene was disfigured with lye, she figured it was one of the cops. Julian just confirmed it's Green," Catherine explained.

"Same MO... The lye, anyways. Was he stabbed as well?" Greg kept looking at the pictures.

"Yeah. Abandoned warehouse, stabbed and he tried to hide his victim's identity with lye. It's safe to say that whoever killed Wood also killed Green."

"Well then let's hope he left some valuable evidence behind this time..." Ray said tired.

"You see this blood trail?" Sara asked Brass. They still were at the crime scene where they found officer Green.

"It's leading away from the scene, right?"

Sara nodded. "Exactly. It might be from the killer. He might've cut himself. Knife combats are messy." She swabbed and photographed it.

"Or he was holding the murder weapon when he was walking off?" Brass concluded.

"Maybe. We'll see. Let's just hope he got some cuts, too."

Catherine, Ray and Sara were standing in the DNA lab.

"It's officer James' blood," Julian said. He handed Ray the report.

"So James walks away from the murder scene, he's bleeding. He got some cuts while fighting with Green. Makes sense, doesn't it?" Ray said while handing the report to Catherine.

"Did you find the murder weapon?" Catherine asked Sara.

"Yeah, it was sticking out of Green's back. We didn't see it until David moved the body. Greg's dusting it for prints right now... ah, there he is."

Greg hurried into the lab. "We've got a print!" he exclaimed in excitement.

"Is it James'?" Catherine asked hopeful.

Greg nodded. "Yes it is! We've got him! He did it!"

"Don't get too excited, yet," Catherine replied. "We can prosecute him for the murders only if we find him. How are we gonna do that?"

Brass walked in. They all looked surprised at him, he usually didn't enter the labs. "Maybe I can help out. I talked to officer James' friends and family. They all said he had a cabin in the woods near Lake Mead. I'll drive out there now, I just came by to tell you the news in person."

While Catherine and Brass were driving to James' cabin, the team went to search Monroe's house for evidence. It was a nice apartment in Spring Valley.

Greg, Ray and Sara went there, accompanied by one uniform. They had a key from the landlord and went in. It was dark so they had their flash lights on.

"What's that smell?" Sara asked while turning the light switch on. Greg closed the door.

Taking a look around, they didn't find anything that could explain the smell. In fact, it was a very clean apartment.

"I'll take the living room. Greg, process the bedroom and Ray, you take the kitchen."

They nodded and went to the rooms Sara assigned them to.

Half an hour passed when Ray joined Sara in the living room. "You find anything?"

She sighed. "Nothing. He probably knew the risk he was taking and didn't want us to find anything in case we are onto him."

"Well I found this." Ray held up an empty bottle of milk.

"And that's interesting because...?"

Ray smiled. "Because I also found this." He held up a receipt. "It was bought today."

"What?" Sara asked surprised. "Someone's been here... TODAY?"

Ray nodded. "It was bought almost eight hours ago."

"But why would Monroe come here? That's dangerous, he should know we'd search his home!"

"At least we now know he's still in Vegas. We still have a good chance to find him."

Sara nodded. "Did you find out what's that smell?"

"It's not coming from the kitchen, so Greg might have an answer to that."