 However, many have corroborated that on the second night, Johnson climbed up a lamppost and dropped a bag with a brick in it down on a cop car, shattering the windshield.Following the Stonewall uprising, Johnson joined the Gay Liberation Front and participated in the first Christopher Street Liberation Pride rally on the first anniversary of the Stonewall rebellion in June 1970.One of Johnson's most notable direct actions occurred in August 1970, staging a sit-in protest at Weinstein Hall at New York University alongside fellow GLF members after administrators canceled a dance when they found out was sponsored by gay organizations.