In the 2020 movie I Care A Lot, Marla who has stolen a mafia family's diamonds as a predatory guardian for the old mother of the family (without knowing who she is). Marla is kidnapped and tortured by Roman (the head of the family) so that he can obtain the location of the diamonds.
She doesn't tell him the whereabouts and after a short conversation Roman orders his men to kill her.
Why did he give up the diamonds so easily?