California carnage, 14 people were killed and 21 injured:

California:

According to the authorities, Dec. 2 San Bernardino, California 14 people were killed and 21 wounded in a carnage.

Reportedly, Syed Farook Rizwan, a US citizen born in Chicago, 28 years and his wife Tashfeen Malik born in Pakistan, 27 years are involved in this incident.

Both of them is accused of storming a holiday party on Wednesday in San Bernardino, California, and opening fire in America's worst mass shooting in three years. Where the 14 people were died and 21 wounded.

According to the officials, One of the two shooters, Tashfeen Malik, was a Pakistani who previously resided in Saudi Arabia who was able to come to the United States using a K-1 visa, commonly known as a fiancé visa, (That visa allowed her to travel to the country and get married within 90 days of arrival, legalising her presence in the U.S) when she was petitioned by her husband, Rizwan Farook, who was the other shooter,

Farook and Malik met on a dating website and maintained an online relationship prior to Malik coming to the U.S. in July, 2014.

The Federal Bureau of Investigation (FBI) has taken over the case after police found thousands of ammunition rounds and home-made bombs at the couple’s house.

The couple was killed during a standoff with police five hours after the massacre. More than 1,600 bullets were found on or around the shooters’ bodies in the rented Ford Expedition SUV. At their home, a massive arsenal of 2,000 9mm rounds, 2,500 .223-calibre rounds and several hundred long-rifle bullets were seized along with 12 pipe bombs and tools that can be used to construct improvised explosive devices.

Police investigators and the FBI are scouring computers and electronic devices found at the rented property for more evidence.

US President Barack Obama:

US President Barack Obama was briefed on the attack by his homeland security adviser. 
He said it was too early to know the shooters' motives but urged the country to take steps to reduce mass shootings, including stricter gun laws and stronger background checks.
“The one thing we do know is that we have a pattern now of mass shootings in this country that has no parallel anywhere else in the world, and there's some steps we could take, not to eliminate every one of these mass shootings, but to improve the odds that they don't happen as frequently,'' Obama told CBS.
Attackers invaded the Inland Regional Center (Pictured) and began shooting around 11 am. They opened fire in a conference area that the San Bernardino County Department of Public Health had rented out for a banquet, said Marybeth Feild, president and chief executive of the nonprofit center.—AP