An expert on the stand in the Tennessee trial against three former Memphis police officers surrounding the death of Tyre Nichols testified that a picture of Nichols after he was beaten was shared repeatedly.

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.

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