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An FBI dive team conducts a search for any evidence, that may have been left by the husband and wife behind the San Bernardino massacre,  at Seccombe Lake Park, in San Bernardino, California, on December 10, 2015. David Bowdich, assistant director of the FBI's office in Los Angeles, told reporters there were indications that US-born Syed Farook and his Pakistani wife Tashfeen Malik had visited the park where Seccombe Lake is located on the day of the December 2 attack or previously.  AFP PHOTO/ RINGO CHIURINGO CHIU/AFP/Getty Images
An FBI dive team conducts a search for any evidence, that may have been left by the husband and wife behind the San Bernardino massacre,  at Seccombe Lake Park, in San Bernardino, California, on December 10, 2015. David Bowdich, assistant director of the FBI's office in Los Angeles, told reporters there were indications that US-born Syed Farook and his Pakistani wife Tashfeen Malik had visited the park where Seccombe Lake is located on the day of the December 2 attack or previously.  AFP PHOTO/ RINGO CHIURINGO CHIU/AFP/Getty Images

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    Are clues to terror attack in lake?

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Are clues to terror attack in lake?

Officials are continuing their search in a San Bernardino-area lake where the killers were spotted. Are there clues in the lake? CNN's Pamela Brown reports.

Are clues to terror attack in lake?

Officials are continuing their search in a San Bernardino-area lake where the killers were spotted. Are there clues in the lake? CNN's Pamela Brown reports.