If you've been watching my brother's bomber, frontlines, three-part series on the bombing

of Pan Am Flight 103, then you know that filmmaker Ken Doranstein has a very personal connection

to the story. His older brother, David, was on the plane when it exploded over Locker

B. Scotland, killing all 259 people on board and 11 on the ground.

What you might not know is that two weeks after his brother died, Ken got a letter in the

mail. It was from David. I was home because I was on Christmas break and news had come from

Pan Am and the mourners had come to the house and we'd had a service forum. You know, he was

very much dead. But then I'd go to get the mail and then they opened it up and there's one of his

letters. I understood exactly why they arrived late but there's a part of it that feeds that

fiction that, okay, what are we going to get letters every week now and you know clues about where

he's hiding out. It was very easy to think he was still out there somewhere. It's been 27 years

since David's death. In that time, Ken has been on an extraordinary journey, which is culminated

in a quest to find and confront the men who carried out the bombing. I'm Michelle Meisner and in

this special edition of the Frontline podcast, we hear from Ken about his relationship with David

and what has motivated him to keep searching, even when it felt like the rest of the world had given up.

I'm sending a letter home to my brother so I told him my tell him what brunch was all about.

So I'm taping brunch. Don't let it inhibit you. Apart from the timing of that last letter, Ken got

from David. It actually wasn't surprising to see an envelope from him in the mail. They were the

kind of brothers who wrote to each other. There's a lot of interesting people. Who there? Someone with purple hair. Sometimes they even made

tapes. This is a recording David sent to Ken of a Sunday brunch on his college campus.

Hi Sarah. Hi James. I'm fine. And one year when David couldn't come home for Passover, Ken made a

recording of their family's satire dinner and sent it to him. At this point in the satire, I have come

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