Given the task definition and input, reply with output. In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.

Papa McDonagh: Know this , Mr. Boyd . If there 's a man out there that killed my son , then nothing you can do can stop the McDonaghs from giving him justice .
Detective Superintendent Peter Boyd: The killer will get justice .
Papa McDonagh: Your justice is not our justice .
Detective Superintendent Peter Boyd: My justice is the _ one _ he 'll get .
justice