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

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.

Three former Memphis police officers who were already convicted on federal charges are now making their case in a Memphis courtroom as they face state charges for the beating death of motorist Tyre Nichols.