The suspect was just released from prison, serving a 10-year sentence for a similar attack at Jerusalem Pride a decade ago.
While security concerns make a parade impossible, a full week of festivities have been planned.
Reno citizens grew concerned when an LGBT pride flag replaced the Stars and Stripes flying over this city of 236,000.
Are LGBT people welcoming of asexuals?
Many are still fuming after a Scottish Pride gathering initially said no to drag performers.