>> Police Tuesday are searching for clues as to why Sedrick Anderson opened fire in a classroom in a San Bernardino school, killing the woman he had married only a few months ago. Anderson Monday killed himself after fatally shooting his wife, a special ed teacher named Karen Elaine Smith.
And an eight year old student leaving another student injured. Authorities now looking into what went wrong in the marriage that prompted Smith to leave Anderson shortly after tying the knot.>> What we were told was that there was an allegation of infidelity in the relationship, but keep in mind, we have nothing to truly verify that.
Those closest to her, said that she had mentioned that his behavior was odd, and that she was concerned about his behavior, and that he had made some threats towards her. He did not make a specific threat to shoot her. We're also told that from the family, that she didn't necessarily take those threats serious, she thought that he was reaching out for attention.
There was nobody at the school that was aware of marital discord. There was nobody that indicated that they were under the impression that he was not to be on the campus, or that, she effectively kept her private life private.>> Smith's mother says the relationship took a surprising turn early on in the marriage.
>> We thought he was a fine person, until they were married, and then he showed the other side of him, which we never had seen before. Well, he began to pick on my daughter and talk down to her, and they had dated for four years. And after about three weeks, my husband and I decided you need to get away from him, he is not the kind of person you thought he was.
>> The shooting comes as San Bernardino is still reeling from the terrorist massacre in December 2015, that left 14 people dead and wounded 20 others after an office holiday party.