adverb/a ˌsanɡɾe ˈfɾia/
in cold blood (in a ruthless and unfeeling manner)
“Testigos contaron que Pantoja Vega estaba caminando por un pasaje, a pocos metros de su casa, cuando fue abordado por sujetos desconocidos que, sin mediar palabra, le dispararon varias veces a sangre fría.” — Witnesses mentioned that Pantoja Vega was walking down a street, a short distance from his home, when he was attacked by unknown subjects who, without hesitation, shot him several times in cold blood.