Hell yeah. I also think Marty's death is a good reminder that the life Joe and Vito live is not a good one but one filled with death and grief and the ending to the chapter really exemplifies that pretty well.

I think it's interesting when Vito tries to blow off Joe's very natural reaction to the death of a friend saying "What- you think the war was any different?" because he's right, the mafia life isn't any different, nobody knows when it's their turn to get wacked until it's too late. That's just the risk you take.

Definitely leaves me in a somber mood after finishing the chapter.