It has been a banner week for media, and it's only Wednesday.

Newsweek has retracted a story alleging that the girlfriend of the man who shot and killed 59 people this weekend at a country music festival in Las Vegas had two Social Security numbers.

None of that is true, and the story disappeared Wednesday from Newsweek's website.

Where the story used to be is now an editor's note that reads:

Newsweek has retracted its story that reviewed public records of Marilou Danley, the girlfriend of Las Vegas shooter Stephen Paddock.
The initial report was based on the marriage record of Danley, who was known under a different name when she married Geary Danley in Clark County, Nevada. Newsweek mistakenly matched that record to a second public record of a different person.
The mistake was revealed when a Newsweek reporter re-interviewed a person who had initially declined to comment for our story. Danley remains a "person of interest" in the shooting investigation of 59 people, including the gunman, Sunday night in Las Vegas.
Newsweek regrets the error.

Professional tip: If your story depends on confirmation from a specific source, and that source doesn't respond to requests for comment, you have to hold the story until they do. Otherwise, this sort of thing happens.