When Tammy McCormack didn't show up that morning at her job with the Schenectady city school district, her son was notified and went to the house to check on his mother and sister, Brown said.

WSJ: Arrest made in case of double slaying at NY home

While the agency had ultimate responsibility for security that night, the problem was eventually attributed more to a White House failure to check invitations.

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Authorities who went to Galfy's house on a welfare check after he failed to turn up at work found him Monday -- severely beaten, dressed only in socks and underwear.

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