At 39:29, Frank begins to tell officer Carpenter about Joe. He says (seems to say) Joe was the first born. The sibling line goes: Danny, Erin, Joe, Jamie. However, the only dialogue clearly heard or captured in the subtitles is, "My son, Joe . . . good cop . . . first born" which sounds like parts of Frank's sentences are covered by the soundtrack and the fade away. He could have been saying, "My son, Joe. He was a good cop. When he was first born, his mother yadda, yadda, yadda."