the switch itself was made of a peace of wood hickory hickory, i think _-dash and probably out of an ax handle or hammer handle. we found in oakdale canister that contained i think, 17 of those switches. you you put them side by side and they are virtually identical to one's we found in the unabomber devices. one of the most important pieces of evidence we found that we all said if we want anything in the world this is what we want a typewriter. since 1992 he had used that typewriter at the fbi lab estimated at been manufactured in 1934 or 35. we were looking for very specific objects. this is the typewriter he had used to not only take the manifesto but everything that accompanied his bonds some that preceded the work device. if we found that he is is to thank you on the last day of the search we found in an ammunition canister lc smith corona typewriter manufactured in 1935 with 2.5 for spacing. that was the typewriter. >> with all the information you found you had no doubt you would be able to prove the case. >> we felt that you could parse out the evidence ten different ways and