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.

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,

Former Memphis officer Desmond Mills Jr. took the stand Tuesday as a prosecution witness against Tadarrius Bean, Demetrius Haley, and Justin Smith, who have pleaded not guilty to state charges including second-degree murder in the death of Nichols.