San Bernardino shooting investigated as 'act of terrorism' - CNN

Story highlights Late Friday, a UPS driver noticed that a package being delivered was addressed to Farook's townhouseSeveral pieces of evidence pushed authorities to launch a terror probe, an FBI official saysThe FBI says the couple crushed cell phones in an attempt to destroy "digital fingerprints"Late Friday, a UPS driver noticed that a package being delivered was addressed to Farook's townhouse and turned around to return it to a distribution facility, San Bernardino Police Chief Jarrod Burguan said in a tweet. The package was held in isolation, and the sheriff's office deployed bomb technicians to inspect the package out of an abundance of caution.

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