There is also nothing in the constitution that says any entity must allow you to use their property at the exclusion of others in order to express your speech.
Correct. Only a government entity (such as the city) must allow you equal access to their public resources (such as this park) without using forceful intervention (such as sending in police) to suppress it.
the city said no if a wanted criminal and fugitive from law would be a party of it.
Free speech is about the speech, not the person speaking. Otherwise we should not have any problem, e.g., banning Karl Marx's Communist Manifesto. After all, Marx is dead -- and was never a citizen -- so surely his right to free speech would not be infringed by the ban.