(CBS News) The fact that Holmes is not online perplexed denizens of the Internet throughout the day, invoking some to message people with similar names, create fake Facebook profiles and even write articles pondering why Holmes, who is 24 years old, presented no presence online.

Mashable editor in chief Lance Ulanoff can’t “get over what an online ghost Holmes appears to be.” Slate staff writer Will Oremus posits that either Holmes really doesn’t have a digital footprint, or his name is so common that search results have been buried beneath Friday’s news.

“It’s certainly unusual. Data suggests that 95 to 98 percent of people Holmes’ age are on social media,” Dr. Megan A. Moreno, of University of Wisconsin-Madison School of Medicine and Public Health, told CBS News. As for that other 5- to 2 percent, Moreno, who has no connection to the case, highlighted a link between extreme Internet use – or lack of use – and depression.

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