Why did they do this!?

Chapter Tweleve

Chase's P.O.V.
Silly turtles, trying to attack me. They shall be gone soon anyway. I watched as Leonardo, Donnatello and Raphael charged at me. I smiled and said: "Stupid turtles!" I then summoned my black Egyptian sword. And...STAB! SLICE! DEATH! I stabbed them all in one! "NO!!" Screamed Mikey in fear.
Mikey's P.O.V.
I watched in horror as Chase disappeared and my brothers fell to the floor. "Leo, Donnie, Raph!" I yelled as I rushed to their aid. Tears rushing down my face. "M-Mikey?" Leo stuttered. "Y-yes" I choked out. "Promise me something...promise me that whatever happens you'll stop Chase." Leo breathed. "I-I promise! But why? You'll be with me." I replied. "Mikey..."Leo began. "It's too late for us..."Donnie continued. "There's a really low chance of us surviving this..."Raph finished. Mikey's eyes covered in tears. "No! You can't leave me! You can't!" I shouted whilst crying. There was no reply. "Leo, Donnie, Raph!?" Mikey called out, but there was still nothing. "No! No! No! No!" Mikey cried, trying to find any source of life on any of them. But there wasn't one. They were gone...all of them. "Isn't that a sight?" Chuckles someone. My eyes turn from sadness into rage. "How could you!? The fight was my fault not theirs!" I shouted. "That way you know how I felt!" Chase yelled back, stepping out of the shadows. I growled, pulled out my nun-chucks and charged at him. But he quickly dodged my attack by running out of the way.