On Saturday in mid-March, Nasrudin Zulkarnaen, 41, spent his afternoon in typical fashion: playing golf at Modernland Golf Course, Tangerang, Banten. It would be his last golf game.

1. At about 2pm, Nasrudin left the course in the B-191-E metallic-gray BMW. He was sitting in the left rear seat.
2. On Jalan Hartono Raya, the vehicle slowed down to pass some speed bumps. Nasrudin’s driver, Suparmin, knew that his boss did not like speed bumps.
3. Jus