u/GriswoldXmas

A line that proves he whacked Tony: "What is The Godfather if not a tragedy about the corrupting nature of power on a family?"

Father wanted to take over both Tony’s real family and his street family.

After Silvio finds out Father whacked Tony he becomes boss of the family. This was his plan all along evidenced by this quote to Tony: "Tony, I'm just here as a shepherd to your flock."

The “last supper” scene at Holsten’s and the family eating onion rings as communion is a foreshadowing to Father Intintola taking over.