Complex sentence: In 1906, White was murdered by millionaire Harry Kendall Thaw over White's affair with Thaw's wife, actress Evelyn Nesbit, leading to a trial which was dubbed at the time "The Trial of the Century".
Split into simpler sentences: In 1906, White was murdered by millionaire Harry Kendall Thaw over White's previous affair with Thaw's then-wife, actress Evelyn Nesbit. The resulting trial was dubbed at the time "The Trial of the Century".