Day four of the Tyre Nichols state trial began with the defense calling more witnesses. Preston Hemphill, a former officer, was first on the stand.

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.

A cybercrime expert with the Tennessee Bureau of Investigation testified Wednesday that a former Memphis police officer charged in the fatal beating of Tyre Nichols took a cellphone photo of Nichols as he sat on the ground,