Week One - 美加州恐攻

(CNN)ISIS on Saturday hailed the two people who massacred 14 people in Southern California this week as "supporters" of the terror group -- a message that came after U.S. investigators said they suspect one of the shooters professed loyalty to the Islamist network.

The terror group's official Iraq-based station made the declaration following Wednesday's San Bernardino shooting that also left 21 injured, but -- notable for a group quick to claim attacks -- did not say the couple were members or that ISIS was responsible.

Tashfeen Malik and her husband, Syed Rizwan Farook, sprayed bullets at Farook's co-workers at a holiday party for the environmental health department in San Bernardino before being gunned down in a shootout with authorities the same day.

"We pray to God to accept them as martyrs," ISIS' al-Bayan Radio declared Saturday.

The ISIS radio report came a day after the FBI said it was treating the attack as an act of terrorism.

It also came after reports that Malik made a public declaration of loyalty to ISIS' leader while the attack was underway. Three U.S. officials familiar with the investigation told CNN on Friday that Malik posted to Facebook a pledge of allegiance to ISIS leader Abu Bakr al-Baghdadi.

The couple's motivation for the attack is a key focus for investigators. But ISIS' acknowledgment of Malik and Farook as supporters doesn't mean they were members or that someone from the group ordered it, said retired Air Force Lt. Col. Rick Francona, a CNN military analyst and a former intelligence officer.

President Obama to address nation over terror threats

ISIS, when claiming responsibility for other terrorist attacks, would call attackers "knights" or "soldiers" rather than supporters. It has, however, urged sympathizers to carry out attacks on their own.

"What they're calling these two are supporters, which is kind of a lesser level," indicating it might not have had direct contact with the couple, Francona said.

On Saturday morning, officials briefing President Barack Obama about the investigation told him that they had "no indication that the killers were part of an organized group or a broader terrorist cell," the White House said.

http://edition.cnn.com/2015/12/05/us/san-bernardino-shooting/

Structure of the Lead :
WHO - A couple
WHEN - December 6, 2015
WHAT - San Bernardino shooters

WHY - Not given
WHERE - California
HOW - Couple stormed a party in Southern California and shot 14 people to deathd.

Key words :
1.massacre : 屠殺2.martyrs : 烈士

3.allegiance : 忠誠

4.acknowledgment : 承認
5.analyst: 分析人士