"a sangre fría" meaning in Spanish

{
  "head_templates": [
    {
      "args": {
        "head": "a sangre fría"
      },
      "expansion": "a sangre fría",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2023 May 11, “Muerte en SJL: sicarios asesinaron a balazos a un hombre a pocos metros de su casa”, in RPP",
          "text": "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.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "in cold blood (in a ruthless and unfeeling manner)"
      ],
      "id": "en-a_sangre_fría-es-adv-LX1kDVWN",
      "links": [
        [
          "in cold blood",
          "in cold blood"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) in cold blood (in a ruthless and unfeeling manner)"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "a sangre fría"
}

{
  "head_templates": [
    {
      "args": {
        "head": "a sangre fría"
      },
      "expansion": "a sangre fría",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Requests for translations of Spanish quotations",
        "Spanish adverbs",
        "Spanish entries with incorrect language header",
        "Spanish idioms",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2023 May 11, “Muerte en SJL: sicarios asesinaron a balazos a un hombre a pocos metros de su casa”, in RPP",
          "text": "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.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "in cold blood (in a ruthless and unfeeling manner)"
      ],
      "links": [
        [
          "in cold blood",
          "in cold blood"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) in cold blood (in a ruthless and unfeeling manner)"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "a sangre fría"
}