>>> it was 25 years ago today pan a.m. flight 103 exploded over locker by, scotland. families gathering in lockerby and at syracuse, university, in new york. which lost 35 students. tonight we'll look at one of the families and how the greatest sources of strength comes from lockerby itself. here's nbc's erica hill .  >> reporter: families gathered today at arlington nags gnat cemetery to pay tribute to their loved ones killed in the 1988 bombing.  >> we dated since we were 15. he was very funny and a family man. enjoyed his family.  >> reporter: 45-year-old frank chula was on the plane. the father of three was one of 270 people killed in the attack. we had the news reports and we saw the plane and the cockpit and the crater.  >> we were hurting too much we didn't want to know tuch.  >> it wasn't until marry lieu and her children visited scotland just outside of lockerby who is the same on this hillside.  >> it head us a lot knowing people cared. people found him. he wasn't alone.  >> reporter: daughter laurie visited in 1994 .  >> i never felt any connection to the cemetery where my father's body is. the farm is a precious, precious location.  >> reporter: the chula's continue to celebrate frank's life creating a book about him for their or kief. it's a vast collection of family memories, documents and key moments like the conviction and the pan am bomber.  >> what sticks with me is him being let off the plane to a sea of flying scottish flags.  >> it is a wound that is being consistently able to help.  >> it brought back so much hope and faith in man kind that we had lost because of the tragedy. it was a life-changing experience.  >> reporter: erica hill , nbc news, new
Video on msnbc.com: It’s been 25 years since Pan Am flight 103 exploded over Lockerbie, Scotland, killing 270 people. NBC’s Erica Hill reports.