David Itzkoff

Jon Stewart, who turned Comedy Central’s “The Daily Show” into a sharp-edged commentary on current events, delivering the news in layers of silliness and mockery, said on Tuesday that he would step down after more than 16 years as its anchor.

Robin Williams, the comedian who evolved into the surprisingly nuanced, Academy Award-winning actor, imbuing his performances with wild inventiveness and a kind of manic energy, died Monday at his home in Tiburon, California, north of San Francisco. He was 63.