The anti-gay Westboro Baptist Church of Topeka, Kansas, led by Fred Phelps, picketed Shepard's funeral as well as the trial of his assailants,[39][40] displaying signs with slogans such as "Matt Shepard rots in Hell", "AIDS Kills Fags Dead" and "God Hates Fags".[41] When the Wyoming Supreme Court ruled that it was legal to display any sort of religious message on city property if it was legal for Casper's Ten Commandments display to remain, Phelps attempted and failed to gain city permits in Cheyenne and Casper to build a monument "of marble or granite 5 or 6 feet (1.8 m) in height on which will be a bronze plaque bearing Shepard's picture and the words: "MATTHEW SHEPARD, Entered Hell October 12, 1998, in Defiance of God's Warning: 'Thou shalt not lie with mankind as with womankind; it is abomination.' Leviticus 18:22."[42][43][44][45]
As a counterprotest during Henderson's trial, Romaine Patterson, a friend of Shepard's, organized a group of individuals who assembled in a circle around the Phelps group wearing white robes and gigantic wings (resembling angels) that blocked the protesters. Police had to create a human barrier between the two protest groups.[46] While the organization had no name in the initial demonstration, it has since been ascribed various titles, including 'Angels of Peace' and 'Angel Action'.[39][40] The fence to which Shepard was tied and left to die became an impromptu shrine for visitors, who left notes, flowers, and other mementos. It has since been removed by the land owner.