Complex sentence: One officer, John McDaniel, testified at the preliminary hearing that Boyd did not attack him but did threaten him, saying he was going to kill McDaniel and his partner, and refused to show the officers his hands.
Split into simpler sentences: One officer, John McDaniel, testified at the preliminary hearing that Boyd did not attack him but did threaten him. Boyd said he was going to kill McDaniel and his partner, and refused to show the officers his hands.