Complex sentence: Plymouth Colony officials arrested three Wampanoags on the testimony of an Indian witness, including one of Metacomet's counselors, and a jury that included six Indian elders convicted the men of Sassamon's murder.
Split into simpler sentences: Plymouth Colony officials arrested three Wampanoag, including one of Metacomet's counselors. On the testimony of a Native American, a jury that included six Indian elders convicted the men of Sassamon's murder.