Jan. 18, 2016; Students pose for photos with Fr. John Jenkins, C.S.C. before a midnight prayer service at the Main Building rotunda in honor of the Rev. Martin Luther King Jr. holiday.  The service was the inaugural event of a campus-wide Walk the Walk Week observance, during which students, faculty and staff have been asked to reflect on the values central to Martin Luther King Jr.&rsquo;s legacy and the mission of Notre Dame. (Photo by Matt Cashore/University of Notre Dame)