Eight-year-old Jonathan Martinez died from gunshot wounds hours after a murder-suicide in his special needs classroom.
Enrique Marquez Jr., 25, will plead guilty to conspiring with Syed Rizwan Farook in 2011 and 2012 to attack a community college and commuters on a Southern California freeway, prosecutors said.
"Terrorists must not be permitted to provide for their designated beneficiaries through their crimes," says U.S. Attorney Eileen Decker.
Syed Raheel Farook's brother could face up to five years in prison.
The bureau may be allowed to withhold how it cracked an iPhone belonging to one of the San Bernardino shooters.
The companies will contest government arguments that the All Writs Act compels Apple to comply with its request.
"Boycott Apple until such time as they give that information," Trump said at a campaign event.
The Department of Justice calls Apple's fight against opening an encrypted smartphone "a public brand marketing strategy."
Cook refused to comply with the government's request to unlock an iPhone of one of the San Bernardino shooters.
Adam Schiff expressed willingness to create ground rules for when tech firms should grant the authorities access to their products.
Tech companies and presidential candidates join the battle lines over digital encryption.
A request to decrypt San Bernardino attacker's iPhone raises profound privacy issues.
What the FBI requested was nothing short of a revolutionary assault on digital privacy and security.
The First Amendment and a less-recognized law from 1789 are the two factors in contention.
The case is part of a long-running dispute between tech companies and law enforcement over encryption.
Senate Intelligence Committee told that the phenomenon of communications "going dark" is "overwhelmingly affecting" law enforcement operations.
We need to separate legitimate free speech from online abuses that threaten the lives of others.
A conversation Enrique Marquez Jr. had ahead of the attacks suggests he thought he may go to prison.
Obama has provided regular, public updates about national security since the December 2 attack in San Bernardino.
The couple massacred 14 people in San Bernardino, California, on December 2.