The last thing he saw was the people who were supposed to protect. He should have said that. "Sorry for all the effort in the past ... Hinata" But he did not say it.
The last thing he saw was someone who he is supposed to protect, and he'd have to say the words "I apologize for everything in the past some ... hip-TA", but he did not speak.
The last thing he saw was the man he should be protecting and he should have said that the word "I'm sorry for all the things that are in the past, Yamagata Prefecture Hin ... " But he did not speak.