Jury selection began Monday in Manhattan in the case against Daniel Penny, the former Marine accused of recklessly choking a homeless man to death on a crowded subway train. Penny, 24, arrived on the first day of his trial as dozens of placard-bearing protesters gathered outside the lower Manhattan courthouse,

Daniel Penny, who put the man, Jordan Neely, in a chokehold last year, told investigators that Mr. Neely posed a deadly threat. The killing polarized New York.