Murdering Children in Russia Violates US Law?

Please explain how mass-murdering Russian children in Russia would violate US law?

Russia is not US territory, therefore US has no responsibility before Russia.

Therefore I have all the right to murder anyone residing on the Russian territory.

Because no good person would visit the Russian Mordor. Ever.

>>16
I'm not Nikita. I'm Nash. And I've never went to any school. I'm completely self educated. Russian education like useless, outside of obtaining a diploma to get any job above a Donbass soldier or a Gazprom pipe guard. And it doesn't matter what kind of diploma you have, you just need a diploma in Russia, since everyone there has a diploma. And university diploma doesn't even have to match the job you apply for. You can design space rockets with a history diploma.