Just to be sure I understand your claims:
1. The U.S. State Department did not disseminate this information.
2. The AP obtained it from a Ukrainian governmental source.
3. Such Ukrainian source fabricated this information.
4. The U.S. State Department has issued a statement denying that it issued this evidence.
5. Any claim that Russia is bombarding Ukraine from its own territory is false.
Drop the strawmen, and yeah, that’s pretty much it.
Follow the links I provided. They tell the story in stark detail.