Those at the march also were protesting the recent Supreme Court decision overturning Roe v. Wade.
The center is to open in the summer of 2024 and will be the first LGBTQ-specific visitor center at a National Park Service site.
The suspect, Runadieo Jordan, faces hate crime charges.
The man was upset the victim’s music was too loud when he allegedly stabbed him in what police say is a possible hate crime.
The announcement comes as the result of a federal lawsuit that alleged officers unfairly targeted and arrested innocent queer men.