Complex sentence: Roy Bryant, the husband of Carolyn who was allegedly whistled at, and his half-brother, J.W. Milam, were arrested for murdering Till, but were acquitted by an all-white jury.
Split into simpler sentences: Roy Bryant, the husband of Carolyn, and his half-brother, J.W. Milam, were arrested for murdering Till. They were acquitted by an all-white jury.