Guard Me Sherlock: Sherlock Holmes Route

Unexpected turn of events

Sherlock informed me of John's whereabouts as we snuck around the Serpentine estate. "His office is on the west side of the building so it would make sense to assume that he is keeping John there"
"So that's where we're going"
"Exactly" We made it to the office and opened the door.
"What?" John was not present in the room but the leader was. "Where's John?"
"My men saw a brown haired man running around the premises, wearing red. I don't know where he is and I don't care" He locked the door and Sherlock stood in front of me protectively.

(Wait...red jacket...?)

"I guess we should've remembered both Stillman and Moran also have brown hair. It could've been any of the three" Sherlock muttered.
"Great of you to join us"
"Huh!?" Someone spoke directly into my ear which caused me to yell out in surprise. "Stillman...!" He suddenly seized me from behind. His arm wrapped around my waist and I was pulled away from Sherlock and into Stillman.
"Elena!?!"
"So you're the one my men saw"
"Stillman what are you doing?"
"You could kill him"
"What?!" Sherlock and I yelled.
"I'd like to know how that's possible with just his bare hands"
"He has a gun on him, Moriarty gave it to him before we entered the house"
"James Moriarty?!" The smug look was wiped off his face and replaced by fear.
"Yup, he's not happy you stole something from him or that you acted so rashly and kidnapped his favourite actress here. You told him you wanted her dead and he told you he wouldn't kill her but subject her to certain events. You both agreed to that but then you go and break the agreement"
"I'm not killing him. Let the police deal with him, they're on their way here as we speak" Cold metal was placed against my temple. It took my brain a moment to realise that the cold metal object that was held against my head was a gun. "Just so we're clear, if you don't kill him, you'll never see this cute face of hers again. At least, not without blood painting it"
"Stillman why are you doing this!?!?" I cried out.
"That should be obvious given what I've already said. Think you're able to kill him now Holmes?"
"First, hand over Elena" Sherlock took his gun out.
"Sherlock...?!"
"You come first, before anything or anyone else. There's no one more important than you"
"No...!" Unable to move, I unexpectedly found myself yelling out to him. "You can't kill him! The weight of taking a life will weigh down on you for as long as you live!"
"Be quiet you" He hit me hard in the side of the head with the gun barrel.
"Elena, no!" I felt blood run down my face.
"I've got no intention of letting that man live, he also stole something precious from me. If he doesn't kill him, I won't hesitate to pull this trigger. Can't we avoid unnecessary bloodshed?"

(So Stillman has some sort of personal grudge against him and now he's doing this for revenge...? That would explain why he had no problem threatening my life since Moriarty would probably be angry if he found out that he had done so)

Stillman pressed the gun harder against my head. "Your choice" Suddenly police sirens could be heard, they sounded close. Stillman's grip around me loosened, probably because he was distracted by the sirens. I used the opportunity to push him away from me and run into Sherlock's arms. "Darn she got away...they got here quicker than I thought they would"
"They'll have this estate surrounded any moment now. There's no escape for you" Sherlock stated as he embraced me tightly.
"Um no, I'm definitely escaping. Right after I kill him, of course" Since we were standing in front of the leader, Stillman's gun was also aimed at us. Sherlock dived out of the way just before Stillman shot his gun.
"ARGH?!!" He instantly crumpled to the ground having been shot through his chest.
"Elena are you okay?!"
"The fall didn't hurt me, I'm fine. But what about..." I trailed off noticing that there was no sign of Stillman.
"He got away" Sherlock stood up and helped me up. "It's over Elena, your case has been solved. Although not in a satisfactory way" The leader of the Serpentines laid on the ground, the life gone from him.
"Yeah..." Relief filled me as my legs suddenly couldn't hold me up anymore.
"Elena?!?!" Sherlock caught me. As Sherlock held me, I looked down at his lifeless body and exhaled with a shudder.
"It's finally over..." With those words, darkness overtook my vision and my consciousness was lost.