First of all, Gavrilo Princip and his band of Nietzsche loving Nihilists louts were used by THE BLACK HAND ( no, not the Italian Mafia...go look it up! ), those who were unhappy belonging to the Austro-Hungarian Empire, and yes....RUSSIA, to murder Franz Ferdinand and Sophie. And IF their driver hadn't made a wrong turn, they NEVER would have been shot that day!
Russian was all for the Bosnians and Serbs breaking away, so that perhaps Russia could take them over, or, at the l;east, cause some havoc. So they helped push the assassination, paid for some of the guns and bullets, and DID meddle in this whole thing; before, during, and afterwards!
The Emperor Franz Joseph, demanded an apology! One would have prevented WW I; at least at that time!
In order to get one, the old man asked Kaiser Wilhelm to handle it for him, as he was not only old, by emotionally distraught. Willie obliged and sought the apology, not once, but over and over again, but was rebuffed and NOT politely! And so WW I began!
Okay, yes, the above is not only a Cliff's notes version and waaaaaaaaaaaaay dumbed down, but IF you are truly interested in this topic, I'll give you some book titles to help you out.
Years ago German scholars established that what you posted here is pure fantasy.
The actual sequence of events is well recorded here:
Europe's Last Summer: Who Started the Great War in 1914?
Tuchman leaves blank the period from assassination to declaration of war.
That's the period Fromkin fills in.
As for your supposed Russian support for Serbia's Black Hand and Russia allegedly pushing those young men to assassinate the Austrian Arch Duke:
I've seen nothing suggesting any Russians, much less the Tsar's government, even knew of Princip's plan.
Indeed, the role of Apis himself is not even fully established.
Sorry, but you are terribly confused.
In fact, the Kaiser's High Command pushed & pushed reluctant Austrians to issue Serbia an ultimatum and then to refuse to accept Serbia's submission on all but one point, then pushed Austria to declare war on Serbia.