Matthew Shepard 20th Anniversary

FILE - In this Oct. 10, 1999 file photo, students sing at a vigil against violence at Prexy's Pasture on the University of Wyoming campus in Laramie, Wyo. The murder of Matthew Shepard, an openly gay student at the University of Wyoming, was a watershed moment for gay rights and LGBTQ acceptance in the U.S., so much so that 20 years later the crime remains seared into the national consciousness. (AP Photo/Ed Andrieski, File)