Madoff-documentary director gone too soon

The more the audience enjoyed “I Jack. I Rob. I Sin” — a documentary about Bernie Madoff that premiered at the Tribeca Film Festival on Thursday — the sadder they felt about the sudden death of its director, Jonathan Kleier, who was just 26 in September when he contracted myocarditis, a virus to the heart. So many people came to the screening — a benefit for the Jonathan Kleier ’01 Leader ship Endowment for Horace Mann School — the film had to be shown twice. The title comes from the lyrics of Jay-Z, who was Jonathan’s idol.