NBC News has learned that San Bernardino shooters Syed Farook and Tashfeen Malik spent at least a year preparing for their terror attack, practicing at a local gun range and making financial plans for their family after their deaths. Two sources said Farook and Malik had practiced their shooting skills at a Riverside, California area gun range for a year or more before last Wednesday's attack on a holiday office party. They killed 14 people and wounded 21 more with firearms at the Inland Regional Center in San Bernardino. Counterterrorism officials also told NBC News that Farook and Malik were making preparations for some time to "take care of both Grandma and the baby"/NBC News. More here.