People protest in Memphis following the release of video showing the deadly encounter between police and Tyre NicholsShameka Wilson for Insider The Memphis Police Department fired a sixth officer involved in Tyre Nichols' death. Preston Hemphill, who had previously been suspended, was fired on Friday, according to officials. Hemphill can be heard on video of the traffic stop saying he hoped his fellow officers "stomp his ass." A sixth Memphis officer was fired Friday after an internal police investigation showed he violated multiple department policies in the violent arrest of Tyre Nichols, including rules surrounding the deployment of a stun gun, officials said.Preston Hemphill had previously been suspended as he was investigated for his role in the Jan.