Tā miáoshù nàgè zuìfàn shí shuō tā shì gè shārén bù zhǎ yǎn de èmó.
He described the criminal as a cold-blooded demon who kills without flinching.
Tips
memory
眨眼 means to blink. Someone who kills without blinking (不眨眼) is so ruthless they feel no hesitation — the blink of the eye is the natural human flinch of conscience or horror.