AP Images Actor Bill Murray wrote an op-ed for NBC News Think comparing the student activists of the Parkland, Florida, school shooting to the student protestors who helped end the Vietnam War. Murray also compared the difficulties of ending the Vietnam War to the challenges presented by gun-control reform. In an op-ed written for NBC News Think on Thursday, actor Bill Murray compared the student activists that arose from the Parkland, Florida, school shooting to the student protestors who played a part in bringing an end to the Vietnam War in the 1970s.