Friends and family said their final farewells Tuesday to a Greenwich man killed in a car accident last week. The funeral for John Zumbo was held at Saint Roch's Catholic Church in Greenwich. Zumbo, 28, died Friday morning in Purchase, New York when his Cadillac Escalade collided with a flatbed truck at a busy intersection. Police are still investigating the cause of the accident. Meantime, friends say a scholarship fund is being set up in Zumbo's name.