Even though the REAL reason he didn't kill her was because she wasn't his target, the ambassador she was transporting was (The winter soldier doesn't kill mindlessly. He's precise. A weapon. Only focusing on his targets.) this is still precious.
Celebrity Body Doubles - North West Scarlett Johansson
My name is Natasha Romanoff. I'm look to be in my mid-twenties, but I was actually born circa 1928. I am know as the "Black Widow" in the Avengers. I'm a kickass fighter, who excels in really any type of combat.