A/N: Wow seems like ages since I've updated but its been just about a week there may be a 2 week gap coming up soon unfortunately, assessments must come first I'm afraid, rest assured if i have chance I'll get the last few chapters up ASAP

"So Jack" Sara began looking at the sullen man. "What possessed you to go out and do a serial killer's work?"

"It wasn't like that, how would you know? You were still in college when that happened"

"When what happened?"

"When it all happened! When this whole sorry mess started"

"You want to tell us all about it then" Grissom said swiftly walking into the room; the scowl that Jack gave Grissom did not go unnoticed by Sara.

"I happened to bump into him two years ago, to cut a long boring story short we became involved together"

"And when did you become aware about your boyfriend's erm extra curricular activities?" Grissom said, voice dripping with sarcasm

"He never killed anyone when we were together!" Jack said angrily

"No, he got you to do it instead" Sara commented

"I did what I had to" He repeated "We had something in common and wanted to act upon it"

"And what was that?" Sara probed

"Him" Jack spat, pointing at Grissom "we both wanted revenge on him"

"When did you become a member of the 'we hate Gil Grissom fan club'?"

Jack's attention was focussed totally on Grissom now, his eyes smouldering with hatred. "When you failed to protect her" he said slowly, his eyes burning accusingly into Grissom. "When you failed to protect my sister"

Grissom understood now "Louise was your sister."

"Yes, we may not share surnames but she is biologically my sister, she was under your care and yet she was raped in your own building. You failed her"

"You do realise the man you shacked up with, your boyfriend was the prime suspect" Grissom said

"He didn't do it! He swore to me he didn't do it, he was set up!"

"How can you be so sure Jack, how can you believe a single thing that man said"

"Because I love him, you never had any proof to convict him and you never would because he was innocent"

"So how did he persuade you to go into his little killing spree, you would do anything for him right? Well isn't that lovely because the same couldn't be said about him. He tried to kill you"

"What went wrong Jack?" questioned Sara "Trouble in paradise?" Jack glowered at Sara.

"If you don't want to talk Jack, do you mind if I try to explain what happened?" Grissom posed

All he got in return was a scowl so Grissom took that as a sign to continue "You agreed to do as he said because as you say you love him, you killed the young couple using your knowledge of forensics to leave a clean crime scene. You wanted revenge against me but you soon realised, he didn't have that in mind well not directly, he had other plans, he wanted to use Greg. You were shocked but of course you agreed, you killed the couple but then you had second thoughts, you couldn't see an innocent you care about get hurt" Grissom knew he was right, he could see it written all over his face.

"I tried to stop him" Jack recalled "he didn't deserve to be hurt"

"You weren't in the lab last night, you just got back from the crime scene, that's why we found you where we did, you only just made it, you changed your mind, you couldn't go through with it, Greg has always been your friend so you tried to dissuade him, but he wasn't having any of it, he was determined what he was going to do and nobody was going to stop him, not even you"

"I didn't know why Greg, why pick on Greg? I didn't see what it would achieve, he's a nice kid, that's why I told you what I did, I hoped I gave you enough"

"Well Jack, to you it may have been confusing, how can attacking Greg be revenge on Grissom? But your boyfriend hid a dangerous obsession, an obsession with Greg" Sara revealed

"I don't believe you" Jack said horrified.

"Think about it Jack, he was killing two birds in one stone, he was getting his revenge on Grissom for what happened all those years ago, but he was also getting his revenge on Greg, the man he is so jealous of it has driven him to the point of an obsession that turned sexual" It made Sara sick to even think about it, but she had seen the evidence, she knew it was true "Once he had finally got his hands on Greg that was it, he shot you"

Jack had tears in his eyes now "This was never supposed to happen, it wasn't supposed to be this way"

"You know what Jack, you probably have one way to avoid the death penalty, and that's to tell me where your boyfriend has Greg"

"I don't know" he answered immediately "I would tell you if I did I swear and I would tell you if I had any idea where Paul may be"

"Oh we know exactly where Paul is" Sara confided

"Then why don't you ask him where Greg is?"

"Because he's dead" Grissom stated

"What?" Jack's face whitened in shock

"Yes your boyfriend shot himself not before trying to take down two of my CSIs. So you better tell me everything you know about his plans"

Jack sat with his head in his hands, still trying to recover from the shocking news that Paul was dead. "He never told me! God I swear I have no idea where Greg is, I wish I did, so much" Grissom could tell he was being genuine, now Paul was dead he had no reason to protect him and he shared no malice towards Greg. Jack could assist them no further.