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Millions share story of Baby Doe found dead in Boston Harbour

The image has attracted a staggering 45 million views on Facebook as investigators try to identity the child whose remains were found on a Boston Harbour beach nearly two weeks ago.

The mystery of Baby Doe began on June 25, when a woman walking her dog on the western shore of Deer Island called 911 and reported finding a trash bag containing the girl's body. The child was wearing white leggings with black polka dots. Inside the bag with her remains was a zebra-print blanket.

Facebook now worth more than Wal-Mart on stock market

The world's biggest online social network knocked the world's largest retailer out of the top 10 list of the highest-valued companies in the Standard & Poor's 500 index on Monday and the gap widened on Tuesday.

While the switch is mostly symbolic — nothing specific happened this week to warrant it, and the difference between the two giants is not that big — it signals investors' insatiable appetite for successful tech stocks. Apple, Microsoft and Google top the list of the highest-valued companies in the U.S., and Facebook looks to be on its way to joining them.