Complex sentence: The three officers involved in the death (including former Detective Gerald Amerson) were placed on trial for involuntary manslaughter, and that they were acquitted after a hung jury was returned on the charges in question.
Split into simpler sentences: The three officers involved in the death (including former Detective Gerald Amerson) were placed on trial for involuntary manslaughter. They were acquitted after a hung jury was returned on the charges in question.