Complex sentence: The assassination of President James A. Garfield took place in Washington, D.C. on July 2,1881 by Charles J. Guiteau at 9:30 a.m., less than four months into Garfield's term as the twentieth President of the United States.
Split into simpler sentences: The assassination of President James A. Garfield took place in Washington, D.C. on July 2,1881. Garfield was shot by Charles J. Guiteau at 9:30 a.m., less than four months into Garfield's term as the twentieth President of the United States.