Forgiveness doesn't always come easily, even during a season of good will. In some cases, however, it can provide a chance to shed the burden of anger and move on with life. 48 Hours presents three stories of individuals who have overcome considerable obstacles to make peace with their past. The Prodigal Father: When Jon Dupre was 14, his father, a prominent attorney, walked out on the family. Correspondent Bill Lagattuta reports on how Dupre, who now has a family of his own, decided to look for his father after having not seen him for 20 years. A Soldier's Story: Correspondent Peter Van Sant reports that 30 years after the Vietnam War, Paul Reed was still tormented by the experience of having served. Then Reed found in his wartime knapsack something that was to have a dramatic impact on his life. My Dad's Killer: At age 15, Tim Streett of Indianapolis witnessed a murder in his family's driveway. Years later, Streett was still grieving and desperately unhappy. Then, one evening while driving, he had an epiphany.