Complex sentence: However, they fully supported the destruction of the Twelve Colonies; and the actions in particular of Boomer and an Eight who had a duplicitous affair with Felix Gaeta on New Caprica make it clear that Eights are capable of homicide and betrayal.
Split into simpler sentences: However, they fully supported the destruction of the Twelve Colonies. The actions of Boomer and an Eight who had a duplicitous affair with Felix Gaeta on New Caprica make it clear that Eights are capable of homicide and betrayal.