Robert F. Kennedy Jr., whose anti-vaccine activism alienated him from much of his family, said he isn't convinced that a lone gunman was solely responsible for his uncle's killing.

President John F. Kennedy waves from his car Nov. 22, 1963, in a motorcade in Dallas with first lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her husband, Texas Gov. John ...

More than 60 years after a white supremacist assassinated civil rights leader Medgar Evers, his daughter still sees the same ...

The preservative thimerosal started Robert F. Kennedy Jr. down the path of questioning vaccine safety. A panel of experts he ...

Camelot came to an end when President John F. Kennedy was assassinated in 1963. What were JFK's final words? Historians weigh in.