C a crime that a person did not commit ! enjoy
It was a trigger that showed that there were two competing powers in Europe: Russia and Austria-Hungary (and their allies).
Franz Ferdinand was killed by a Serbian separatist and the Austrians wanted to see him punished. On the other hand, Russia supported Serbia is saying that Austrian demands ( to be allowed to search for the culprit inside Serbia) were too much.
This lead to a direct conflict between the two powers (Austria and Russia) and further lead to the war.
A resource will always have value as long as people are willing to pay for it. This happens because the resource is sought after which means people see worth in this resources. One example of this are precious minerals which have no apparent reason why anyone would consider them expensive other than the fact that peopl are willing to pay for them.
Night then. Sleep well human being