Summary: After a serial killer escapes from a prison in Wilmington, NC, Mac Taylor calls upon the Wilmington Crime Lab for a joint investigation and eventually a job. Enter Isabella 'Killer' Pacino. Unfortunately, she's the only daughter of the notorious Armando Pacino Jr of the Pacino crime family, Shadow's Blade in New York. This will cause some trouble…

Disclaimer: I do not own CSI: NY or any of its characters. I own Isabella 'Killer' Pacino and whoever is unrecognizable from the series. All credit goes to CBS.

A/N: I hope you like this story, please R&R!

Rating: T

Pairings: Flack/OC eventually C:

Better watch out, I'm goin' for the knockout

And I won't stop till I'm on top now

Not gonna give up until I get what's mine

Better check that I'm about to upset

And I'm up now, so you'd better step back

I'm taking over so watch me shine

Vanessa Carlton – Watch Me Shine

The sun shone brightly in the sky as Detective Isabella Pacino walked down the streets of her hometown.

'Time to go to work', she thought with a sigh. She opened the door to the Wilmington Police Department and walked in.

"Pacino, Detective Adams wants you", Aria De Luca called from her desk in the bullpen. Isabella nodded to her partner before pressing the 'up' button on the elevator.

"If he calls, tell him I'm on my way up", she replied. She stepped into the elevator and took a deep breath. She and her boss usually got along, but the crime lab was a tense place. The doors opened and Isabella stepped out and went for the office that her boss occupied. Isabella knocked on the door.

"Come in", a male voice called. Isabella opened the door and walked in.

"You wanted to see me, sir?" she said. She blinked her aqua eyes at him, trying to decipher the harsh and annoyed look her boss wore.

"Yeah, Killer, c'mon in and sit down", Detective Adams replied. He was a man in his late forties. Everyone called Isabella 'Killer' for her fierce loyalty to her friends and people she held close. Her second-degree black belt in Mixed-Martial Arts didn't hurt her either. She was the WPD's personal pit bull. Isabella sat down on a chair and looked at her boss. She tried to swallow the nervousness and her eyes flicked around the room, fighting the urge to twirl her jet-black curls around her finger.

"I have bad news and good news", he said.

'This is it', she thought. 'I'm going to be fired and replaced with some bimbo who does half the work for twice the pay'. Isabella knew she was a good cop, but she always had her doubts.

"The bad news is, Jay Maxwell escaped from prison in Raleigh last week", Adams said. Isabella stiffened in shock. She was the arresting officer on that case. Jay Maxwell, or 'The Angel of Death', had taken the lives of seven women. He'd explained the addiction of murder as 'an adrenaline rush'. He'd gotten addicted to the rush and brutally murdered his victims. She had been relieved to put him away, but the brutality of the case was forever embedded in her mind. Her heart sank when she had heard his name. Jay Maxwell had been beaten and tortured in college by a gang and had never been the same.

"What's the good news?" Isabella asked. She would ask questions on why she was just now finding out about this afterwards.

"The good news is, I just got off of the phone with the head of the crime lab in New York City. They had two murders matching Maxwell's MO and called us up after getting a case-to-case hit. I'm sending you to New York to catch this guy for good and bring him home. Detective Mac Taylor wants you to work with his team and had asked me to send one of my best CSIs out there. I gave him your name and he expects you in New York in two days", Adams replied. The nerves vanished from her insides immediately.

"I'll do my best, sir", Isabella said. Her skin tingled with anticipation. She was always given complicated and challenging cases because she was the only one in the lab who thrived on it. If someone had given her the choice of either staying in the nice, warm lab in the middle of winter or going out in the harsh cold, dealing with rude people and possibly getting sick or shot, she'd take the cold. She never took the easy way out, which had warmed her up to Adams.

"Go on home, Killer. I have arranged a flight for you and a hotel room. You leave tomorrow at noon", Adams replied. Isabella stood up, thanked him, and walked out. She was in a daze as she walked down the sidewalk towards her car.

'I'm going to New York. Tomorrow. How am I going to do this?' she thought as she got into her car. It was a gift from her uncle. A 1970 Chevy Camaro SS. Isabella and her twin brother, Ian had been raised by their mother and Uncle Tony their entire lives. Their father had walked out on them when they were born. Uncle Tony was her father's brother. Isabella pulled into the driveway of her childhood home and got out. She was immediately greeted by her uncle's Border Collie, Dallas. Isabella rubbed the dog's side before walking inside. Wrangler, Ian's dog nearly knocked her down. Isabella giggled and got back up, shoving down the overexcited Lab.

"Mama, I'm home. I got something to tell you", she called.

"Sa chistin, grá ", Marnie replied in her native tongue. Her mother was full-blooded first-generation Irish.

[In the kitchen, love]

Isabella walked into the kitchen and straddled a chair.

"So I have some news", she said, propping her chin on the back and looking up at her mother. Isabella was glad she looked like her mother. They both had the same jet-black hair, aqua eyes, petite frame, and a famous half-moon smile, as Uncle Tony called it. She'd never met her father, but she hated him for leaving them.

"Are they good news?" Marnie asked, swiping a lock of hair behind her ear. Isabella shrugged.

"Depends on how you take it", she replied.

"Well, what is it?" Marnie asked.

"I have to go to New York for my job", Isabella replied. Marnie's aqua eyes flashed with an unrecognizable emotion.

"What happened that would cause you to go to New York?" she asked.

"A killer escaped from prison. I was the arresting officer on the case, so they're sending me", Isabella replied. Marnie sighed, setting down her dish towel. She'd been washing dishes.

"How long will you be gone?" she asked. Isabella shrugged her reply.

"However long it takes to bring the guy home. Most likely a week or so", she replied.

"I want you to be safe, Izzy-éan ", Marnie said, kissing the top of her daughter's head. Izzy-éan or Izzy-'bird', had been her nickname since she was little.

"I'll be as safe as I can be in New York, Mama", Isabella replied. She stood up and went to pack her things. Tomorrow, she'd leave for New York and everything would change.