Sian Blake's boyfriend, Arthur Simpson-Kent, was taken into custody for allegedly murdering the former "EastEnders" star and her two children, according to The Guardian.
Simpson-Kent was picked up by authorities at London's Heathrow airport on his return to the U.K. after being extradited from Ghana.
The soap star and her two sons, Zachary, 8 and four-year-old Amon, went missing on Dec. 13 and were found dead, buried in the garden of Blake's home in Erith, Kent on Jan. 6 with head and neck injuries, according to BBC News.
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