San Bernardino Suspects Left Remote-Controlled Bomb Behind

San Bernardino shooting suspects Syed Farook and Tashfeen Malik left a remote-controlled explosive device behind at the office party where 14 people had already been killed while they fled the scene, NBC News reported Thursday, and the controller was similar to a model car controller used by the Tsarnaev brothers in the 2013 Boston Marathon bombing.

At this time, there is not a known link between the attacks in Boston and California, NBC reports, but the attackers all seemed to be using designs that are found in "Inspire," an online English-language publication of al-Qaida in the Arabian Peninsula.

Three pipe bombs were found tied together at the San Bernardino scene, authorities said Thursday, indicating that Farook and his wife, Malik, believed their attack would draw large numbers of law enforcement and emergency personnel, and the device would cause even more deaths.

But the bombs did not detonate, and authorities said the controller may have been too far away to trigger the bomb when the couple fled the scene.

The pipe bombs were also similar to the ones used by the Tsarnaev brothers after the Boston
Marathon bombing, NBC reported, and San Bernardino Police Chief Jarrod Burguan said in a Thursday press conference that 12 of them were also found at a residence in Redlands.

However, authorities are still trying to determine where Farook and Malik learned to make their bombs, and are not confirming that they got their designs from the online magazine.

They are also seeking accomplices that may have helped them get the ammunition, materials and weapons used in the attack.

Residue from explosives were found at the Redlands property, indicating the bombs were made there, investigators said.

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