Investigators probing the attack that left 14 people dead in a San Bernardino conference room are trying to determine whether the married couple who opened fire last week also left a bomb at the massacre scene with the hopes that the device would kill police officers, a source familiar with the investigation told the Los Angeles Times on Tuesday.
Two other sources told The Times that investigators believe Farook and Malik used a large cash loan to help acquire up to two rifles used in the attack, as well as thousands of rounds of ammunition and parts for pipe bomb explosives found in the couple's Redlands home hours after the assault.
Investigators believe the cash advances also would have helped explain how the couple managed to pay for a rental car and gun range target practice before the attack, considering Farook earned only $52,000 annually as a San Bernardino County health inspector.