noun
murder for pleasure; lust murder
Refers to homicide motivated by the perpetrator's enjoyment or sexual gratification. Often used in criminology and news reports.
快楽殺人は、犯人が殺害行為そのものに快感を覚える凶悪犯罪です。
Murder for pleasure is a heinous crime in which the perpetrator derives pleasure from the act of killing itself.
殺人 is the general term for murder or homicide, while 快楽殺人 specifies a motive of pleasure or lust.
Compound of 快楽 (pleasure) and 殺人 (murder).