Travis McMichael, the White man who fatally shot Ahmaud Arbery, made a “tactical mistake” in taking the stand at his trial, Fox News contributor Leo Terrell said Thursday on “The Story.”

“The prosecution did an excellent job. This was a mistake for this man to take the witness stand,” Terrell told host Martha MacCallum.

McMichael tearfully testified a day earlier that he shot Arbery, 25, in self-defense after he attacked him and lunged for his gun. On Thursday, however, McMichael admitted that the unarmed Arbery didn’t speak or threaten him before McMichael raised his shotgun. McMichael said he suspected Arbery was a burglar and pursued him through the Satilla Shores, Georgia, neighborhood for five minutes before the fatal encounter.

“Not only was Arbery not a threat because he was trying to avoid McMichael, but he was basically trying to get away from him,” Terrell said of the admission. “And the provocation was the showing of the two guns. It’s unreasonable for him to assume that Arbery was a threat.”