Meaning of the word "in cold blood" in English

What does "in cold blood" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

in cold blood

US /ɪn koʊld blʌd/
UK /ɪn kəʊld blʌd/
"in cold blood" picture

Idiom

without emotion or pity; deliberately and cruelly

Example:
The crime was committed in cold blood, showing no remorse.
How could someone kill an innocent person in cold blood?