projectiles and they are ball bearing time or small sharp like a little larger than bb type beads. they are two to three millimeters in diameter. we have also removed over a dozen carpenter type nails. greta: we talk to bomb technician. kevin, let me jump in. we are trying to figure out how the investigation will be solved and these bombs will help identify the killer or killers. is it possible that from the pieces of that bomb that in may have been some dna that was deposited from the handling of them that could still be on those bomb parts? absolutely. i used to teach a class before i retired and in that class i made all the students aware of the fact that there is no such thing as vaporization. all those components are out on
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