In 1896 Nasiri’d-Din Shah was indeed struck down by an assassin on the very eve of his jubilee celebrations. The Baha'is had nothing whatever to do with this deed but memories of the assassination attempt made by three deranged Babis in 1852 were still powerful. In its report the London Times supposed that the murderer was a 'Babi'. Only gradually was it realized that the Baha'is were not responsible.
(Servant of the Glory - The Life of 'Abdu'l-Baha by Mary Perkins)