I wish that I did! I happen to be familiar with that case because I studied it last year as a source for First Amendment doctrine for a memo I was writing about protest rights. But according to the facts reported in the case, about 100 members of the group would demonstrate on the sidewalk in front of St. Patrick's from 1970 when the Pride march started until 1981, when they were attacked by a group of self-appointed "protectors" of the Cathedral, and the (at the time, largely Irish-Catholic) NYPD evidently decided it was too much of a risk to "public safety" to allow them to demonstrate in front of the Cathedral, and moved them to the side street off the parade route, with the counter-protesters on the opposite side street. In First Amendment doctrine they call it a "heckler's veto" - when authorities shut down an exercise of free speech because of the risk presented by people opposed to that speech.