Carly thinks Morgan is the guilty one
After much thought, I don't believe Morgan killed Silas. To put it simply, Morgan is too much of a coward to kill anyone. Morgan is just an immature young man with no morals and no courage. Granted, Silas was stabbed in the back. But I don't believe Morgan is his killer.
Ava could be guilty. But isn't that a bit too easy? Ava had the most to lose. But would Ava kill her daughter's father? I'm not sure yet. Again, it just seems much too simple.
So Elizabeth figured out that Nikolas had Hayden shot. Good for Elizabeth for being realistic and seeing Nikolas for who he is. Not that I love this darker side of Nikolas. But, at least Elizabeth knows what Nikolas is capable of.