"Nice to see you again, Mr. Sanders," Detective Casey Keenan from Internal Affairs greeted him with a handshake as Greg walked into the interrogation room. They met a few months ago when IA suspected Nick to have shot Officer Randall at the lab.

He was nervous, he had no idea what was going on. Was he a suspect in Julian's murder case now? "Hello..."

"Please, sit down."

He did, and Brass sat down next to him. Greg looked a bit helpless to Brass, but he kept his straight face on, giving Greg more reason to be nervous. "What's going on here?"

"Mr. Sanders, I'd like to videotape your statement. Is that alright?"

He nodded.

"Mr. Stokes was kinda rough there in the lab, huh?"

"What do you mean?"

"Didn't he grab you by the shoulder and yell at you?" Keenan asked.

"No. I mean, yeah, he touched my shoulder, but he didn't yell at me."

"Mhm." He wrote something down. "He has quite a temper, it seems? What was your altercation about?"

Greg rolled his eyes. He figured Keenan was looking for something to blame Nick for Julian's murder. "Nick doesn't have a temper. He didn't agree with how I did my work and we talked about it. That's all."

"Oh yeah?" Again, he wrote something down. "What's wrong with how you're doing your job?"

"Nothing. He wanted me to make his case top priority. I told him that other cases are important, too."

"Right. You're back in the DNA lab. Now that Julian is dead they'd try to find a new tech. Good for you, huh?"

Greg didn't know what to answer. What was Keenan getting at? "Could somebody tell me what's this about? You can't possibly think that Nick killed Julian!"

Keenan grinned. "Of course not. We think you did."

"...What? Why would you even think that?"

The Detective put photographs on the table. "For starters, that's why."

The pictures showed Julian's body. In his left hand were strands of hair. Greg didn't know how this would suggest that he has anything to do with his death. But other pictures showed something different. "...Is that my kitchen?" he asked shocked. "You've been into my apartment?"

"We had a search warrant."

He looked desperate to Brass, but saw only pity in his eyes. "A search warrant? How?"

Brass pointed at one of the pictures with Julian's body on them. "These strands of hair are yours."

"But... How did they get there?" Greg asked sheepishly.

"We were hoping you could tell us," Keenan said.

"I... I have no idea. I didn't see him after I talked to him at the hospital."

"If you went over to him to talk to him and... things got out of hand, you have to tell us," Brass said, trying to be understanding. The way Julian's face was ravaged didn't really conclude that someone did this to him in self defense, but he wanted to believe that, if Greg did this, it was self defense.

"No! I didn't do this."

"Listen, Sanders. Let's be honest here. You had motive. You claim he was stalking you. He had a bad reaction to his medication which caused him to hold you and Stokes hostage. In order to get out there, you shot him. You just wanted to end what you started, didn't you?" Keenan already made up his mind and there was almost no way convincing him he was wrong.

Greg shook his head. "No."

"You also had opportunity." Keenan showed him the pictures again. "Did you really think we wouldn't find this?" The picture was showing one of Greg's kitchen cupboards. Inside this cupboard was a set of keys. "You shouldn't have kept this spare key to your victim's apartment."

"I didn't even know I had those keys! He never gave it to me."

"What are you trying to say, Mr. Sanders? That we planted it there?"

"No, of course not, but..."

"But you have no idea how it got there. Huh. That's strange, isn't it? Can you at least explain how your keys turned up at his apartment?" Keenan pulled out another picture. It showed one of Julian's side tables with Greg's old set of keys sitting on it.

Slowly Greg began to understand what was going on. At least what he thought was going on. "I can explain that."

"I hope you can," Keenan said sarcastically.

David knocked on the door and entered. "Excuse me..."

"What is it?" Keenan asked annoyed.

"I don't mean to interrupt," he said, looking at Greg with a faint smile on his face. "But we have the time of death."

"And?"

"He died two to four hours before he was found. Greg was at the lab at the time."

Keenan looked at David annoyed. "Alright, thank you." David left the room. As Keenan saw the relief in Greg's eyes, he got even more annoyed. He just wanted Greg to be the murderer and wasn't even sure why. "Okay, get out of here. But just so you know, this doesn't mean anything to me. You're a CSI, I'm sure you know how to manipulate TOD, and you could also have hired someone to do the dirty work for you. Don't go too far away."

Greg tried his best to resist the urge to roll his eyes. He stood up and left the room, Brass followed.

"You did good in there," Brass said, trying to cheer up Greg.

"You really thought I did this?" Greg said disappointed and walked away, passing Nick, who tried to talk to him, but Greg didn't stop.

"Is he alright?" Nick asked Brass. "It didn't go too well in there, did it?"

"No, it's alright. He has an alibi."

"Then why does he look so angry?"

"Because I thought he did it." Brass walked away.

A week later, the CSIs working Julian's murder still weren't able to shed any light in the case. The only evidence they found was pointing towards Greg, but with him having an alibi, there was almost no possibility of him being the murderer. Almost meaning, like Detective Keenan said, maybe he was somehow able to manipulate time of death. There was nothing to prove that, though. Greg was officially not a suspect anymore, meaning that they didn't have any suspects. They didn't know who did it or why he was murdered. All they knew was the 'how'. Beaten and then shot. He had high levels of pain killers in his blood, something they couldn't explain. They figured it might have something to do with his gunshot wound Greg caused. Maybe he took too many pills by accident, they thought. Either way, it didn't really matter anymore. They were ready to lay the case to rest.

"Nick!" Greg stormed into the break room. The look on his face made Nick expect some bad news.

"What's wrong?"

"I got the results from your case." He was still working in the DNA lab most of the time.

"Finally. Took you long enough. What did you find?"

"Remember the blood stain on her clothes? It's not hers. I also found traces of sperm on her clothes. It's the same guy, the sperm and the blood."

Nick nodded. "Is he in one of our databases?"

"No."

Nick looked disappointed.

"But I know who it belongs to."

"Well then spill it out."

"Well, when she went missing we collected both the mother's and the father's DNA, remember?" He sighed. "It's Mr. Craig's blood and sperm."

"What?" Nick said shocked, almost not believing it. "And you're sure about that?"

"Of course. But there's more. He's not her biological father. Doesn't make it much less weird, but..." When he saw Nick's face impression, he stopped. "Are you alright?"

"It can't be him. He can't be the murderer of his daughter!"

"You have to arrest him, Nick. Looks like he did it."

"We don't know that! Maybe the blood got on her shirt before she went missing." Nick tried to find a good explanation for this. "Maybe..."

"And how do you explain the sperm stain? Or that she went missing two years before she died? These stains suggest that he saw her on the day she died, two years after she was reported missing. It's not too far fetched to say he also killed her. You have to call Brass. Mr. Craig needs to be arrested."

"Well if you're so sure about that, why don't you call Brass. I won't." Nick got up and left the room.