BRIGHTON, Colo. — Two police officers, two paramedics and a former police officer pleaded not guilty Friday in the killing of Elijah McClain, 23, a Black man who died after he was placed in a chokehold and given a powerful sedative while in handcuffs.He responded that he was an introvert and to “please respect the boundaries that I am speaking.” After questioning McClain, the officers grabbed him.Aurora police have said McClain “resisted contact, a struggle ensued, and he was taken into custody.”Authorities said officers applied a carotid control hold on McClain, a type of chokehold meant to restrict blood to the brain to render a person unconscious.Paramedics were called to the scene, and they injected McClain with the sedative ketamine while handcuffed, and police video showed him writhing on the ground saying, “I can’t breathe, please,” and vomiting.“I believe this tragic fatality is most likely the result of ketamine toxicity,” the coroner said in the report, adding McClain received a higher dosage than someone should have for his weight."