Bomb factory found in California home

Home’s renter pleaded not guilty to 28 charges involving explosive devices


The discoveries were made after a gardener working in the yard Thursday stepped on an explosive and was seriously injured

By Kristina Davis & J. Harry Jones

VISTA — A man who prosecutors allege turned his home into a virtual “bomb factory” by manufacturing a large amount of highly dangerous and volatile homemade explosives that terrorists worldwide have used was ordered to remain in jail on $5 million bail Monday.

George Djura Jakubec, 54, pleaded not guilty to 28 charges, mostly involving the possession or manufacture of explosives devices, during his arraignment in Vista Superior Court.

Authorities said nine to 12 pounds of three types of explosives were found over the past few days in the home Jakubec rented on Via Scott near Escondido — the explosive powder HMTD, short for Hexamethylene triperoxide diamine, as well as ETN and PETN.

Short for Pentaerythritol tetranitrate, PETN is a powerful explosive that has been used in several recent bombing cases, including the 2001 Shoe Bomber, the 2009 Christmas Day bomb plot and October’s cargo plane bomb plot, according to bomb experts.

ETN, short for Erythritol tetranitrate, is similar, but more rare. It’s precursor is a natural sweetener.

Authorities said nine to 12 pounds of three types of explosives were found over the past few days in the home Jakubec rented

“This is the largest quantity of this type of explosives found in one location in the history of the United States, ” said Deputy District Attorney Terri Perez, who described the chemicals as being frequently used in Iraq and Afghanistan.

“We have an ongoing investigation into what his intentions were, ” Perez said.

The discoveries were made after a gardener working in the yard Thursday stepped on an explosive and was seriously injured.

Also found in the home were 13 unfilled grenades wrapped in shrapnel and nine completed detonators, Perez said.

Investigators also found evidence linking Jakubec to two bank robberies “involving substantial amounts of money, ” Perez said. Details about the robberies were not released and remain under investigation.

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