Overall a weak, anti-climatic end to one of the main characters, while every other characters death was dramatic in some way.
I believe that Coppola left Clemenza's death vague on purpose ... as a payback to Castellano for not coming to terms to appear in Part II.
Possible, SC...very possible, but I also have to think he wanted to downplay the Clemenza character to allow Pentangeli to chew the scenery as well as he did.
"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"
