This story will be updated throughout the day on Tuesday. 12:30 p.m. update: Former officer Emmitt Martin provided details on the initial traffic stop that later led to Tyre Nichols' beating, and the alleged cover-up of the beating afterward. Martin said he did not have a radar and does not know how fast Nichols was driving, but says “he had a little speed on him.” He pursued Nichols for around two to three minutes, and had lights on for about 30 seconds. He said all three officers were issuing commands to Nichols at the same time while on the first scene, but officers did not tell Nichols at any point why he was stopped or being handcuffed. Smith, Bean, and Mills were on the second scene when Martin arrived. Martin says he saw Nichols was on the ground and Smith and Bean were hitting him with closed fists. Nichols was “not resisting violently,” and he was pulling his hands away. Martin said he thought the other officers were just “trying to get his hands, but that wasn't the case. They were assaulting him. They were punching him.” Still, even though Martin said Nichols was not a threat, he said he kicked and punched Nichols several times because he was angry that Nichols ran, and that officers had pepper-sprayed themselves. “I was already on edge and angry. When he got away that was the tip of the iceberg. Once I got sprayed I was already angry. So when he got away that's what happened,” Martin said. The other officers did not tell him to stop. “They should have intervened," he said. Martin said he did not believe they were going to report the punches in their report, saying he had an understanding with the other officers that they would not get each other in trouble. “Im not gonna tell on them and I know they're not gonna tell on me," he said. "I not gonna put them in a situation where they are gonna get in trouble. We had an understanding. We gonna do what we need to do. I knew they weren't gonna tell on me and I wasn't gonna tell on them.” ***** MEMPHIS, Tenn. -- One of the former Memphis Police officers charged in the beating death of Tyre Nichols took the stand on Monday. Just last month Emmitt Martin III, one of the accused officers, pleaded guilty to two of the four counts against him - excessive force and conspiracy to witness tamper. Now, he is testifying against his colleagues Tadarrius Bean, Demetrius Haley, and Justin Smith, who were also federally charged. Tyre Nichols trial: Ex-MPD officer recounts night of beating Martin informed the jury that he was hit by a car in the line of duty in November 2022, and went back out in the field for the first time since the accident four days before the incident involving Nichols. He said he told Justin Smith he was ready to return, but he wasn't. "I was seeing red. I was angry. I wanted some type of revenge," said Martin. He also described how the traffic stop unfolded, saying he "exaggerated" the situation to the other officers on the Scorpion Unit, causing them to treat the traffic stop as a felony offense, even though it was not one. Martin said that none of the officers on the first scene told Nichols why they pulled him over before snatching him out of his car, which he admitted was against MPD policy. He also told the jury that Nichols was never a threat. Martin will continue his testimony on Tuesday morning.