ATF experts analyzed the scattered remains: a nine-inch-long, one-inch-wide pipe encased in a wooden box, secured with nails, rubber bands, screws, epoxy, three-quarter-inch black plastic tape, and half-inch filament tape. The explosive was two types of smokeless powder packed in the pipe. The makeshift trigger resembled a child’s plaything: a nail tensed by several rubber bands. Opening the handcrafted wooden box released the nail, which struck match heads, igniting the powder. Curiously, one end of the pipe was closed with a wooden stopper. The device was built from scavenged materials—hand-forged nails, reclaimed screws, items others might discard. Thus, the Junkyard Bomber emerged.

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