Perugia, October 31 - The university of Perugia is holding a mass on Thursday to commemorate the five-year anniversary of the slaying of British student Meredith Kercher, who was found murdered on November 2, 2007 in her home in the Umbrian city where she was studying. Kercher, 21, was found semi-naked and with her throat cut in the house she shared in Perugia with a Seattle-born student, Amanda Knox, and two Italian women. Knox and her Italian ex-boyfriend Raffaele Sollecito were acquitted of the 2007 murder at an appeals trial in 2010. University chaplain Father Elio Bromuri will hold the ceremony and is scheduled to speak about the student during the prayers. ''It remains a great wound in citizens' consciences'', Father Bromuri told ANSA. ''It is a dark spot and a loss that we are unable to rationalize, to find a logical reason for''. His word were echoed by Perugia Mayor Wladimiro Boccali, who said ''the anniversary of the slaying reopens a wound that had never actually healed''. ''The murder of this girl has left a deep mark on the conscience and on the collective memory of the town'', Boccali added. The city of Perugia and the university two weeks ago instituted a scholarship fund in honor of Kercher.