A/N: This is another request from DaX0315. I don't own any of the characters except my own.

Seeing Double

Chicago had a serial murderer on its hands. The only thing the witnesses could tell Intelligence was that the killer wore a mask and black from head to toe. The murders all took place about the same time of day and in the same general area. The team decided to stakeout the area and hoped to catch the person responsible for all these murders. They all sat in their cars and waited. They saw a person wearing a mask and all black go into a building.

"Move in. Now!"

Everyone went into the building and followed the person. The person ran up the stairs and ended up on the roof of the building. Atwater and Ruzek followed and got shot at. They shot back and they were able to catch the suspect. Ruzek grabbed the mask and pulled it off.

"What the hell?"

"Oh, hell no! I'm callin' Sarge."

Atwater called Hank.

"Hey, Atwater?"

"Yo Sarge, you're gonna want to see this. We're on the roof."

"I'm on my way."

Hank and the rest of the team came up to the roof. Hank thought he was seeing things and so did everyone else. Their suspect was the spitting image of Olivia except the hair was a different style and color and she was covered in tattoos and had piercings all over.

"This isn't happening. Take her and put her in the Cage."

"You got it, Boss."

Ruzek and Atwater left with their suspect and Hank headed down to his SUV. He tried calling Olivia on the way.

"Hey, it's me. Call me when you get this or meet me at the District."

Hank got to his SUV and drove back to the District. The suspect was in the Cage when Hank got there, so he opened it and went in.

"What the hell is wrong with you?"

"So I killed some people. So what?"

"You're a cop for crying out loud."

"Me? You must have me mistaken for Olivia, the goody two shoes, who does no wrong. I don't give a rat's ass about her. She'll probably end up getting exactly what she deserves anyway."

"You lay a hand on Olivia and I will kill you myself."

"Did I hit a nerve?"

"You do not want to piss me off, Bitch!"

Then Al came down.

"Hank, the Boss is here."

"I'll be right there."

Al went back upstairs and then Hank slammed the Cage shut and locked it before he went upstairs. Olivia was at the front desk talking to Trudy. Hank grabbed Olivia's hand and headed back downstairs.

"Come with me."

"Nice to see you too, Hank."

Olivia followed Hank down the stairs and saw the person in the Cage.

"Who the hell is that?"

"You tell me."

"I have no idea."

"Well, well, well, if it isn't Miss Goody Two Shoes."

"What are you talking about?"

"You really are clueless, aren't you? The old lady probably didn't even remember that I existed anyway. I was taken from the hospital nursery right after I was born 50 years ago and later on, I turned to a life of crime."

"We're sisters?"

"You finally got something right. I'm Lacey."

"Why didn't you ever try to find us?"

"What was the point? I figured I'd eventually meet my long lost twin sometime in my life. What's our dear mother like?"

"She's been dead for over 17 years. She was an alcoholic and could be abusive. She was raped and that resulted in me or us. You didn't miss anything by not growing up with her.

"How'd she die?"

She came out of a bar and fell down the subway stairs."

"That's too bad."

"Really, it wasn't. I always knew something related to her drinking was going to kill her. Do you know who took you?"

"Joseph Hollister."

"He's the guy that raped her. Mom never mentioned ever having another baby. What was he like?"

"I really don't remember him. I was placed in foster care early on and was in and out of different homes until I was 18 and I've been in and out of jail so many times that I've lost track. I've been molested and abused ever since I can remember."

"Why didn't you get help?"

"No one would want to help me. No one wanted me. I can't even find a decent man to be in a relationship with. I'm damaged goods and now I'll be going away for the rest of my life for murdering people. I don't even care anymore. Why should I care about any one when no one ever cared about me?"

"I could help you."

"No you couldn't."

"I deal with victims of sexual assault for a living."

"Well, goody for you."

"Maybe your attitude is the reason no one wants you."

"Screw you, Bitch! I don't need you either."

"This day just keeps getting better and better."

"Go on home then."

"Ok. Don't be too long."

"I won't."

Olivia went back upstairs and then she headed home.

"Wait, you're with her, aren't you?"

"None of your damn business!"

Hank went back upstairs to his office and then Adam went down to take Lacey to be booked. She kicked him and they started struggling. Atwater came running down the stairs and then he pulled his gun. Almost everyone else came down and once they restrained her again, they took her to be booked.

"You ok, Adam?"

"Yeah, I'm fine. Thanks."

Everyone else went back upstairs and then Hank headed home to see how Olivia was. She was fixing dinner when he came in.

"Hey."

"Hey."

"Where's Noah?"

"He's at a sleepover tonight."

"Ok. I got a little worried when I saw our suspect. I thought she was you."

"I can see why but you know I'd never do that."

"I know but that's what worried me. I was hoping I wasn't married to a serial killer."

"Don't even joke about that. It's bad enough to find out that I have an identical twin that is. I really wish I could have helped her but she refused. I still think her bad attitude towards everyone is why no one wants her."

"You're probably right. Come here."

Olivia went over to Hank, so he could wrap his arms around her and then he kissed her.

"So, would you have wanted to arrest me?"

"No, of course not. Why would I want to arrest my wife?"

"I don't know. I'd arrest you, you know."

"I don't doubt that. That's how you ended up with me in the first place. You threatened to arrest me and that was that."

"It turned out to be one of the best things I could have done."

"Going to New York to send Erin home was the best thing I could have done."

"Actually, coming here that first time was the best thing I could have done and we have been together ever since."

"I can't think of anyone else I'd rather be with."

"Me neither. I'm glad I finally found someone who wants me despite all the baggage I have and loves my son just as much."

"I feel the same way. You and Justin established a great relationship, which made me happy to see."

Hank had tears in his eyes.

"Honey, it's ok. I miss him too."

"I'm just grateful that I didn't have to go through that alone. Who knows what I would have done."

"Yeah, I know."

"I love you, you know that, right?"

"Yes, I know. I love you too."

They finished fixing dinner together and after dinner, they spent the rest of the night making love and being in each other's arms. Lacey had her arraignment and pled guilty, so there wasn't even a trial. She was sent to jail for life and even though Olivia had told her that she'd be there for her, she still wanted no part of trying to establish a relationship with her, which Olivia came to accept even though a part of her still wanted to help her.

Reviews and suggestions are appreciated.