Atlanta train stabbing suspect faces new charge as feds weigh death penalty in great-grandmother’s killing

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A Georgia man accused of fatally stabbing a 66-year-old great-grandmother in an unprovoked attack aboard an Atlanta MARTA train is now facing a federal charge that could make him eligible for life in prison or the death penalty, federal prosecutors said.

John Elijah Matthews, 25, of Decatur, Georgia, was charged in a federal criminal complaint with committing an act of violence using a dangerous weapon with intent to cause death on a mass transportation system...