After a while.

Some time after Johnny's wedding, he "appears" again in old Nortrig. Truth be told, being warned of what happened to Thomas made him much more involved and present in Nortrig compared to the past and this surely is going to bring to many consequences, one probably shocking.
Anyhow, after settling stuff on Earth and moving to Italy with Don Giulio and his family, he took Dominic with him for some time to learn more about what happened that night and the nearest before. And there was one thing in Dominic's memory which definitely did not square.
The young one did not even realize it, but he did, very clearly. And for that exact reason he intends to meet Dorian. He is not happy about it, but he will try not to end up in a brawl, even though he blames him for being so careless towards Thomas' and this matter. He considers Dorian a selfish bastard.