Kelsey Grammer on the Tragic Murder of His Sister and the Road to Healing

Since he shot to fame through popular American sitcoms "Cheers" and “Frasier," the award-winning actor Kelsey Grammer has built a celebrated career across TV, film and Broadway. But his personal life has been marked by tragedy and loss, including the rape and murder of his beloved younger sister Karen. Grammer speaks to Michel Martin about his memoir, "Karen: A Brother Remembers."