blood money
From Longman Dictionary of Contemporary Englishblood moneyˈblood ˌmoney noun [uncountable] 1 KILLMONEYmoney paid for murdering someone2 MONEYKILLmoney paid to the family of someone who has been murderedExamples from the Corpusblood money• It had been financed by blood money, blood money from the wealthy parents of Charles's dead wife.• Senator Jackson said this was blood money and an outrage.