All nukes went from Ukraine to Russia (same in other former Soviet republics) after the Soviet Union broke apart. It all was regulated by proper treaties. You should not listen to rumors.
Regarding your next statement, Russia is not interfering in what is happening in Ukraine AT ALL. As opposed to EU and US who send their emissaries to Ukraine very often. The only "interference" from Russia is giving to Ukraine a huge credit and pushing down the gas prices which I guess is more help than interference. Also, this is not about Putin or anybody else. Most of Ukraine is culturally and historically extremely close to Russia. They are pretty much the same people. This may not be true regarding a couple of the most Western regions of the country. Those guys, I believe, have their full right on "independence" but that effectively would mean the split of the country which is the hardest thing to do.
Please be careful with selectively picked information. It's not constructive and not helpful.
There are multiple rumors about Russian forces disguised as Berkut, there are some evidences about Russian snipers here, there are videos of some military forces of non-Ukrainian origin in Southern Ukraine, etc. I don't give this full credibility (usual rumors in time of unrest, perhaps), but still there's no smoke without fire.
Regarding your next statement, Russia is not interfering in what is happening in Ukraine AT ALL. As opposed to EU and US who send their emissaries to Ukraine very often. The only "interference" from Russia is giving to Ukraine a huge credit and pushing down the gas prices which I guess is more help than interference. Also, this is not about Putin or anybody else. Most of Ukraine is culturally and historically extremely close to Russia. They are pretty much the same people. This may not be true regarding a couple of the most Western regions of the country. Those guys, I believe, have their full right on "independence" but that effectively would mean the split of the country which is the hardest thing to do.
Please be careful with selectively picked information. It's not constructive and not helpful.