FBI investigators on Friday recovered several items from a San Bernardino lake as they looked for electronics and other items left by the shooters in the most deadly terrorist attack on U.S. soil since 9/11, according to law enforcement sources.
The source did not say what was found, but officials expect the search of Seccombe Lake and the canvassing of the surrounding neighborhood will continue.
Investigators received a tip that the shooters may have visited the area on the day of the attack, according to David Bowdich, assistant special agent in charge of the FBI's Los Angeles field office.
Meanwhile, more details emerged about the investigation into married couple Syed Rizwan Farook and
Two congressmen, after receiving an intelligence briefing Thursday, said neighbors of the shooters told investigators they witnessed "suspicious activity" at the couple's home before the attack but did not report it to authorities.
They didn't provide details about what those activities were. It's also unclear which home the officials were talking about. The couple, authorities say, amassed a cache of weapons, ammunition and explosives at their home in Redlands.
The FBI has searched another home linked to the family in Corona. At that location, several neighbors said they saw the residents moving large boxes and furniture out and into SUVs a week before the shootings.
An examination of digital equipment recovered from the home of the couple who killed 14 people in San Bernardino last week has led FBI investigators to believe the shooters were planning an even larger assault, according to federal government sources.
Farook and Malik were in the final planning stages of an assault on a location or building that housed a lot more people than their Dec. 2 attack site, the Inland Regional Center, possibly a nearby school or college, according to federal sources familiar with the widening investigation.
Investigators have based that conclusion on evidence left behind on Farook and Malik's computers and digital devices, not all of which the couple were able to destroy before they were killed in a firefight with police hours after their rampage, the sources said.
Images of San Bernardino-area schools were found on a cellphone belonging to Farook, according to a law enforcement source. But the source cautioned that Farook may have had a legitimate reason to have the images because his work as a county health inspector involved checking on school dining facilities.
On Thursday, one of the federal government sources told The Times that in 2011 or 2012 Farook asked his friend and neighbor, Enrique Marquez, to buy two military-style rifles used in the attacks because he feared he "wouldn't pass a background check" if he attempted to acquire the weapons on his own. The rifles were bought at a local gun store, the source said.
The timing of the rifle purchases is significant to FBI investigators. Another federal government source previously told The Times that Farook may have been considering a separate terror plot in 2011 or 2012.
Farook was self-radicalizing around that time, FBI Director James Comey said, and met Malik soon after, eventually marrying her and bringing her to the United States. Farook was a practicing Muslim. Marquez converted to Islam around the time he purchased the weapons, sources have told The Times.
FBI agents believe Farook abandoned his plans to launch the earlier attack after a law enforcement task force arrested three men in Chino in November 2012. The men were later convicted of charges related to providing material support to terrorists and plotting to kill Americans in Afghanistan. A fourth man arrested in Afghanistan also was convicted in the scheme.
Bowdich said federal agents are investigating whether the men had ties to Farook.
Marquez has emerged as a central figure in the investigation. The FBI had been conducting interviews with the 24-year-old, who checked himself in to a mental health facility after the attacks.
The former Wal-Mart security guard has waived his Miranda rights and cooperated with the inquiry, and it was Marquez who told FBI agents about Farook's earlier plans, according to one of the government sources, who also requested anonymity.
"They were talking generally about something, but I don't think it made it to anything specific," one of the sources said of the earlier plot. "I don't think it got to a time or a place."
The source said it remains unclear whether Marquez had any involvement in the planning of the shooting or had any prior knowledge that an attack was pending.
Marquez, a cycling enthusiast who wanted to join the U.S. Navy, was a longtime friend and neighbor of Farook. He also married the sister of Farook's sister-in-law last year, although the circumstances of the union are now under investigation, a government official previously told The Times.
There was no paperwork transferring ownership of the assault rifles from Marquez to Farook, as required by California law, government officials told The Times.
Hours after the shooting, Marquez posted a cryptic message on his Facebook page.
"I'm. Very sorry sguys," the message read. "It was a pleasure."
Bowdich on Thursday declined to answer questions about Marquez, who has not been charged with a crime.
Marquez told FBI agents that the Facebook post has been "misunderstood," according to one of the government sources. Agents are concerned that Marquez's mental and emotional state may affect what he has been telling interrogators, the source said.
While Marquez has spoken to agents about his ties to Farook, federal officials are still working to verify the information he has provided, the source said.
Marquez's mother, Armida Chacon, addressed reporters on Thursday from her Tomlinson Avenue home in Riverside, sobbing as she said she hadn't been in contact with her son since the day of the massacre.
"I don't know how this happened.... My world is upside-down," she said. "My life changed Wednesday."
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