Three ex-Memphis police officers are facing state charges including second-degree murder and aggravated assault in the beating death of Tyre Nichols.

Testimony in the trial of three former Memphis officers charged with fatally beating Tyre Nichols resumes Wednesday, a day after defense attorneys sought to chip away at accusations that the officers used unnecessary force to subdue Nichols after he ran from a traffic stop.

A cybercrime expert with the Tennessee Bureau of Investigation testified Wednesday that a former Memphis police officer charged in the fatal beating of Tyre Nic