the 1988 bombing of pan am flight over lockerbie, scotland and tilled 270 people and many americans. merks, grab was convicted. some believe koussa was the master mind and head of a pan am victims group told cnn. >> i mean, he knows who ordered the bombing of that plane. he knows who made the bomb. who paid for the bomb. he knows how the bomb was transferred to malta. he also knows a great deal about the diplomatic arrangement when one bomber was released from prison in scotland last year. >> wasn't that the bomber who is still alive and kicking? >> zain verjee joins us from london. i know british officials are in a tough spot but where is koussa and where he is staying in the