I have an urgent request for help. There is something I can’t find in my notes and research, and can’t find it in searches on the internet. Ted Kaczynski, as the Unabomber, did, one or more times, use a ballpoint pen tube (also called a ballpoint pen liner) as an improvised detonator. He filled the ballpoint pen tube with explosive powder and used it as an improvised detonator to initiate the explosion in a pipe bomb. The same technique as the Vance bomber. A FBI bomb expert in the Vance case said that in 1989 after examining thousands of bombs he had never seen anyone else, besides the Vance bomber, use a ballpoint pen tube as a detonator. Yet I know Kaczynski did use a ballpoint pen tube (also called a liner) as a detonator, perhaps in the 1993 – 1995 time frame, perhaps earlier, and In fact I think he used a Faber Castell ballpoint pen.

Yet I cannot find where I got this information. I need a source, a reference, a cite.

Any help is much appreciated.