Federal authorities said the HMTD discovered had the explosive power of several of the devices used in the London subway bombing of 2005, which killed 52 people. Explosives experts found the HMTD in jars, and buried them in the ground to detonate them, closing the southbound lanes of Interstate 15 for about three hours for motorists' safety.
Authorities also allege they found PETN, the powder explosive used in the recent cargo bombing plot, by the failed "shoe bomber" in 2001 and allegedly by Umar Farouk Abdulmutallab in the unsuccessful attempt to bring down Northwest flight 253 with an underwear bomb last Christmas.
Authorities also say they discovered dye packs and wigs on the property. According to Deputy D.A. Perez, Jakubec robbed banks in San Diego County on June 25 and July 17, and got away with a "substantial amount" of money.
Jakubec's wife Marina, from whom he had recently separated, told the San Diego Union-Tribune that her Serbian-born husband had lost his job three years ago and she believes he had become unbalanced. "I am afraid for my husband's mental state," she said. "He's not well."
She told the paper that Jakubec had allegedly purchased chemicals and electronics with money she had earned, but she did not know what it was for.
According to court records, Jakubec was on probation after pleading guilty to shoplifting at an electronics store last year.
Jakubec pled not guilty to 26 state charges, but the state dropped its charges when the U.S. Attorney launched a federal prosecution. Jakubec now faces three bank robbery and one attempted bank robbery charges, as well as charges of possession and manufacturing explosives. He allegedly stole $54,000 in the robberies. He pled not guilty to the eight federal charges on Monday.