North Korean state television broadcast images on Tuesday of Kim Jong-un, the country's presumptive new leader, and senior government officials visiting the body of dictator Kim Jong-il, who died Saturday of at heart attack at age 69. Kim Jong-il's death is only the second time in North Korea's 80 year history that leadership has changed. Kim's father, Kim Il-sung died in 1994. Video that emerged on Monday of North Koreans hysterically grieving has been watched all over the world. John Sudworth  of the BBC reports on the latest from Seoul, South Korea.