Random writing in my head

This is part from a story for a contest

My calf  already erupted in pain. The three bullets had gotten aimed for my calf. "JASON , WACH OUT" I yell but I'm too late. The guy tackles him holding the gun to his throat. "Shut up Meena you'll get your self killed" He retorts. The guy with the gun smirks looking at me then Jason pushing the end of the gun into his throat. "Say goodbye Avend" He yells.He pulls the trigger. My throat tightens. I here Barna scream.I reach for my phone " I'm sorry Jason" I mutter. " I will never forgive you" He says gasphing for air.
I know he won't. If he lives,Foster care..I here sirens another two guys had shot Izzy the twins Mary and Mark.