09/30/2014 12:00:00 AMGerard O'Donovan's death resurrects memories of an exceptional leader. Lettersstory Dr. Gerard  O'Donovan's death resurrects memories of an exceptional intellectual, a leader in and out of the classroom, and a bona fide compassionate human. His death is a great loss to the scientific community at large, to UNT and to us as well. Monier ('89 Ph.D.) and Carolyn ('90) Ibrahim Summertown, Tenn.