*On Saturday in Atlanta, Martin Luther King III told an audience that the recent shootings in Arizona that killed six and left a congresswoman critically wounded shows the work of his father must continue.

The son of Martin Luther King Jr. spoke at a dinner where the King Center honored the late Massachusetts Sen. Edward M. Kennedy’s work on civil rights. A posthumous award was being presented to the senator’s widow, Vicki Kennedy. The senator, who died in 2009 at age 77 following a battle with cancer, helped make King’s birthday a national holiday.

King said the shooting of Arizona Rep. Gabrielle Giffords make his father’s message of nonviolence resonate particularly strongly.

Both King and Kennedy families have been touched by political violence. President John Kennedy was assassinated in 1963, and King and Sen. Robert Kennedy were slain in 1968.