I hear you. I still dont think Owen was involved. He fukking hates Gyp breh. I don't see the circumstances of them meeting in the first place let alone Owen backstabbing Nucky while befriending Gyp. Especially when Nucky doesn't know anything yet. Plus the writers aint that good to make it believable. So if it DOES go down like you're suggesting then I'm gonna be like
no doubt. im not even saying that shyt is definitely gonna happen, but i could see it. its not out of the realm of possibility imo.
If i'm wrong up this, but in what world would Owen and Gyp ran into each other and had a peaceful talk about blowing up this mans boss to start a war? Why would he even trust Gyp? If i'm wrong I'll tip my hat, but i don't see Owen hating Nucky enough to blow up Rothstein and bystanders to kill him when they spend enough time around each other to just shoot him. He's not like Gyp who barely see's Nucky....a bomb isn't needed.
but Owen has zero reason to kill Nucky( fukking peg isn't a reason he hasn't asked her to run away ) doesn't want to be boss and is his bodyguard . He could find a much more low key way to kill Nucky and them .
that's when he goes ham sandwich . Kills owen when he catches them and hires harrow 
( all wishful thinking ) anyone associated with peg needs to go
but hes Irish & Catholic them brehs dont put hats on especially back in them times.
...and he can't feel any different then he will when she whip out that diaphram. He doesn't want a baby by this goof, if he agrees to the diaphram why not the condom?
