16 December 1916.
Prince Felix Yusoppov along with Grand Duke Dimitry; the Tsar's nephew-in-law and cousin respectively are considered the chief conspirators and perpetrators in the killing of Grigory Effimovich...
He was a healer.
Robert Kennedy but i dont think died till 6.6.68
Assassination is term when you are an assassin and you murder someone sorta like a hit man.