I find this perplexing that Vito would let Sonny's murder [machine gunned like a Swiss cheese] and Michael's attempted murder, resulting in his new wife, Apollonia's death [car bombed] go unanswered by Carlo and Barzini respectively
How Kay know he married Apollonia
I didn't think anyone other than Vito knew about Apollonia but Kay for someone who was banished, knew a lot of inside stuff even that Michael killed Fredo
