Final Members of Trump Jury Chosen as Trial Races Ahead

The final jurors for Donald J. Trump’s criminal trial were selected on Friday, with lawyers preparing to offer opening statements on Monday in a landmark proceeding that was suddenly overshadowed at midday by the spectacle of a man setting himself aflame outside the courthouse.

Five Manhattan residents were chosen Friday, filling out a group of 12 seated jurors and six alternates who will hear accusations from the Manhattan district attorney’s office that Mr. Trump sought to cover up a sex scandal that could have imperiled his 2016 run for president.

The day was marked by an intensity of emotion from the start. Several prospective jurors asked to be excused, and some became upset, with one saying she had become too nervous to continue the process.

Then word quietly began to spread about the man who had set himself on fire in a park across the street from the courthouse. The courtroom proceedings continued, but the stir was noticeable, and reporters ran from the room.

The man’s motivations were not immediately clear, but he was carrying leaflets espousing antigovernment conspiracy theories.

An afternoon hearing at which the judge was to determine the questions prosecutors could ask the former president if he were to testify proceeded as scheduled.