A/N

You guys are going to hate me. Sorry. Lots of angst here, but this story wouldn't leave me alone! I got the inspiration from this from superlc529's story "Habeas Corpses" which is a great story by the way, and you should go read it! But first, read this and leave a review!

"You ready Castle?" Detective Kate Beckett whispered to Castle who was crouched next to her. Behind that door was the city's most ruthless killer. The killer who had ordered the hit on her mother. Castle nodded the fear showing in his eyes. Ryan, Esposito and the rest of the gang were still too far away and they had to go in now before this bastard could escape. Castle softly took the safety off the gun she had given him.

"Ok. We go in on 3. 1…2…" They both readied themselves. "3!" Beckett rose to her feet and kicked the door in and went in with her gun raised, shouting "NYPD! Put your weapons down and your hands in the air!" The only response she got was gunfire.

"Look out!" Castle yelled, and the next thing Kate knew, he had enwrapped her in a huge bear hug and pulled her off to the side, behind some cover. Castle collapsed on top of her as they fell to the floor.

"Castle!" Kate yelled, trying to get out from under him. When she finally succeeded, she was horrified to discover blood oozing from a serious wound in Castle's chest.

"Hang on Castle!" Kat whispered, inwardly pleading with him to be alright. But she had no choice to return to the situation at hand thought, as they were still under fire. Kate poked her head around the corner in order to get a clear show, then fired once. There was an

"Oooph." then silence as the gunfire ceased. Kate turned her attention immediately back to Castle.

"Come on Castle. Don't give up on me now." She pled with him as she applied pressure to his wound.

"Kate?" Castle gasped, his eyes fluttering.

"Shhh… I'm here. You're going to be just fine." She assured him. Damn it, where were Ryan and Esposito?

"Remember…" Castle coughed, gathering his strength. "Remember your promise. Look after Alexis for me." Castle's breathing grew labored.

"Stop it! Don't talk like that! You're going to be fine!" Kate said, desperately wishing for back up to arrive. NOW.

"Kate." Castle gasped her name out. "Kate." There was a moment's pause as Castle gathered his strength to speak again. "Kate, I love you." And with those final words, Castle's eyes closed.

"NO! Castle! Come on Castle!" Kate checked for a pulse, but there was nothing. "You are not allowed to die on me Castle!" Kate whispered as she removed her hand from Castle's hand to start CPR.

"Come on!" she pled again, as she started giving him mouth to mouth. Still nothing. "I love you too. Please don't leave me." Finally Kate sat back against the wall, and curled up, starting to cry. She buried her face in her bloody hands, not caring. Richard Castle was gone.

A/N

Sorry if Kate sounds a bit off. I was having troubles getting her to sound right. Feel free to make suggestions!