Unlike Colonel Mustang, Riza Hawkeye never thinks when she aims her firearm at her victims.
The only thing that she wants to know is that she does it for the man that she loves the most in the world.
She knows that if one day, she'd have to look back and gaze at the face of the ones that she took the life off, her mind would definitely give away in the nothingness.
That's why Riza Hawkeye never looks back towards the past but keeps stubbornly her eyes on the horizon.
Love transcends Riza Hawkeye and makes her an outstanding killer.