NEW YORK — An 18-year-old man was arrested Thursday on federal charges alleging that he fired a machine gun on a New York City street, causing the stray-bullet death of a woman.

Faisil McCants was expected to appear before a magistrate judge Friday. Federal Defenders of New York did not immediately respond to a message seeking comment.

U.S. Attorney Jay Clayton said in a statement that McCants and two accomplices stole backpacks containing marijuana from a drug dealer on Aug. 27 in the middle of the day. Then McCants allegedly pulled the weapon from his sweatshirt and shot at the man who had been robbed, killing the bystander. Police identified her as Robin Wright.

“The death of that wholly innocent bystander, a 69-year-old woman who was merely standing with her walker on the sidewalk i

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