A/N: I hope this really catches on. I went to save this, and it got deleted. All of my hard work, which took three hours to type up got deleted. I legitimately cried. Not even joking. SO PLEASE REVIEW DDDD:

IT WILL HELP ME WITH THE INJUSTICE MOZILLA FIREFOX INFLICTED UPON ME

You can sound the alarm

You can call out your dogs

You can fence in your yard

You can hold all the cards

But I won't back down

Oh no, I won't back down

Oh no

Eminem feat. P!nk — Won't Back Down

Isabella shook her head wildly as she approached the crime scene, trying to fight off the chill of the early winter air at four o'clock in the morning.

"Victim's name is Vivienne Marx. Thirty-two years old", Detective Daniel Montgomery said. He was the new head of the crime lab, flown all the way from Seattle, Washington. She sighed and looked down at the waistband of the victim's jeans. Something glittering caught the streetlight and she bent down, putting gloves on and taking it off her jeans. She held it up to read it and her heart nearly stopped. Vivienne Marx was a detective with the NYPD.

"She's NYPD", Isabella said, looking up at Daniel. His eyebrows rose.

"Are you sure?" he asked. She held up the badge. 'City of New York Police Detective' glistened at the head of the shield. The numbers '3100' glistened. Isabella quickly tapped it into the database tablet each CSI was required to carry. Vivienne Marx was a Third Grade Homicide Detective. She was a member of Detective Donald Flack Jr's team. That was one call she hated to make, but she had to.

"Hey, uh, Daniel, lemme call her supervisor. I know him", she said to Daniel. He nodded.

"That's one call I bet you're dying to make, eh, Killer?" he said. She gave him a shaky smile and stripped off her gloves. She pulled out her cell and dialed Don's number regretfully. It was four am, she hoped he was awake.

"Got insomnia, Rocky?" was his answer. She chuckled.

"I call bearing bad news, Don", she said.

"This is not good. Did your brother call and say I was being mean to him again?" he teased. It had been three months since Isabella had left, and Ian and Don constantly bumped heads.

"No, he didn't. Uh, are you missing anyone from your team?" she asked uneasily. Uneasy silence.

"Why do you ask?" he asked.

"We have a body here in Wilmington and she had an NYPD badge. Her name is Vivienne Marx. I ran her badge, and it says she's on your team", she replied.

"Vivi's dead?" Don asked. She kicked herself mentally. She hated this part.

"I'm afraid so. I'm sorry that I'm the one to tell you about this, Don", she replied softly.

"No, I'm glad it was you and not someone else. When did you find her body?" he asked.

"We found it about thirty minutes ago, I came onto the scene about ten minutes ago. I'm very sorry about your loss, I know how it feels to lose a team-mate", she replied.

"I know, I appreciate that you told me", he said.

"Let me know if there's absolutely anything I can do to help. You name it", she said.

"Right now, catch the sick bastard who killed her. That'd be the best thing you can do for me", he replied.

"I'll give it everything I've got, Don", she promised.

"Keep me posted, okay? This is something I'm not looking forward to telling everyone", he said.

"I will. When we catch the guy, you're the first to know", she replied. After a minute of talking, Isabella hung up the phone.

"That was her CO, Detective Flack. I worked with him when I was in New York, Vivienne Marx was on his team", she said to Daniel.

"You take this case. We've got a body off Nixon, De Luca and Ross will be here soon", he replied, referring to Aria De Luca and Logan Ross. The three of them always got the case locked down. Isabella looked down at the body and examined it closely. Huge chunks were torn out of the body, some fingers and teeth were missing. A slash to the throat was most likely COD. Vivienne Marx looked as though she was once a pretty woman, with soft blonde hair. Why anyone would want to hurt someone like her was beyond her. Anyone who killed a cop was automatically going down, no matter the jurisdiction.

"Vivienne Marx, what the hell are you doing in Wilmington?" Isabella murmured.

When the body was rolled to the ME's office, Aria rested her hand on her friend's shoulder.

"You okay, Killer?" she murmured. Isabella nodded, distracted.

"She's an NYPD officer, Ree-Ree", she replied.

"We're gonna get this guy", Aria promised. They stood in the ME's office with Charles Hamilton, the Medical Examiner.

"Well, lucky thing is, the dismemberment happened after death. Official COD is exsanguination due to a knife wound to the throat, severing the jugular vein. Our victim bled out within minutes", Charlie said. Isabella sighed, running a gloved hand over Vivienne Marx's hair. Charlie frowned and looked at Vivienne Marx.

"I have another victim with a COD just like hers", he said, pulling another body out of the freezer. Same MO as Vivienne Marx.

"Her name is Janet King. Brought in a couple of days ago, but no one was able to claim her".

"Can I get her wallet?" Isabella asked. He pulled a bag out. Another NYPD badge. She ran the badge number '4558' into the database at the office. Homicide detective, but on Detective Sean O'Reilly's team.

"I gotta call Flack. This killer is targeting women of the NYPD. We officially have a serial killer on our hands", she said.

"Wait till you hear the most disturbing part", Charlie told her. She looked up.

"The area around the neck was licked clean. I sent DNA to the lab and it came back human, no hits in any database. Your killer's a cannibal", he said. Isabella's hand slapped over her mouth in horror.

"Are you sure, Charlie?" she asked in a shaky voice. He nodded gravely.

"This is definite cause of a joint investigation. I'm calling Detective Taylor", she said, pushing out of autopsy and going up to the lab. She walked directly into Daniel's office.

"Daniel, we got a serial killer. He's targeting women cops. The body of Janet King is from NYPD also, I'm trying to get a joint investigation in order with New York and I need your approval", she said, planting her hands on her hips. He gave her a pained look.

"The DOA we had on Nixon street was a cop, too. Remember Lila Fitch, the Narcotics detective that helped us cinch Justin Yeager?" he asked. She nodded.

"She's dead, too. Same MO as your DOA", he said. Isabella's hand flew to her throat.

"He's a cannibalistic cop killer", she murmured.

"Call Detective Taylor, tell him to bring as many investigators as he wants", he said. Isabella already had her phone out and had sent a text message to Mac Taylor. Her phone rang.

"Mac, we have two of your people in our morgue", she said.

"I heard you had Vivienne Marx. Who else is there?" he asked.

"Janet King. We want to do a joint investigation with you, if you're willing. Detective Montgomery says you can bring as many as you want, I can get you a place to stay for a good price", she said.

"Did you lose any of your own?" he asked.

"A Narco cop", she replied.

"He's a cop killer. You can expect us in four days, Pacino. I'll call you later with details", Mac said. They hung up.

"We have a killer to catch. He preys on women cops, so we have to keep the women in our department safe", Isabella said to Daniel.

"You get them set up. This is your case, Isabella. Do this by the book, no matter who's involved", he replied. She nodded and walked away. Time to go home and talk to her mother.

"Mama, I need to talk to you", Isabella said, straddling a chair in the kitchen and looking up at her. This felt incredibly familiar.

"Are you going New York?" Marnie asked. Her mother had recently suffered a stroke that had affected her speech. Isabella shook her head.

"There's a new case coming in and it's a joint investigation with the NYPD. I want them to stay here", she replied. Marnie nodded, furrowing her brow. The sweet Irishwoman was lucky to be alive.

"Good thought in head. How many come?" she asked.

"Mac's calling me back with details. Can we cut them a deal?" Isabella said.

"No other way I want done. They stay as long as want", Marnie replied with a smile. Isabella kissed her mother's cheek.

"Go raibh maith agat, Mama", she said. Marnie patted her daughter's cheek.

[Thank you, Mama]

"An bhfuil an méid ní mór duit, iníon", she replied.

[Do what you must, daughter]

Isabella looked down at her phone as it rang.

"It's Mac", she said, sliding her finger to answer the phone.

"Pacino".

"I'm coming with Danny, Hawkes, and Flack", Mac said.

"Aw, no Lindsay?" Isabella teased. He laughed.

"Maybe next time", he replied.

"I have a place for you all to stay for the time being, my mom runs a boardinghouse called a 'stay-home'. There's good food and awesome people", she said.

"We don't want to put you out, Isabella", he replied.

"You'd hurt my mom's feelings if y'all didn't stay here", she said honestly. Her mother's face was beaming as she busily cooked.

"Alright, we'll be flying into Wilmington from JFK three days from now", he replied.

"I'll see you all then", she said and hung up.