Looking straight at Dmitrichenko, Iksanov dismissed the dancer's claims that Filin had threatened staff and even extorted $100,000 from the troupe chief.
"I'm confident that this could not have happened," Iksanov said.
Dmitrichenko, in his questions to Iksanov, tried to claim that a regular dancer like him could never undermine a boss like Filin. Iksanov disagreed, saying "it was possible to create unbearable conditions" for Filin to work.
Although Dmitrichenko and Iksanov seemed to disagree on what was fueling tensions, both looked amicable and were smiling at each other like old friends.
In his court testimony earlier this month, Filin called Dmitrichenko a volatile and threatening employee who was always stirring up trouble, but stopped short of accusing him of plotting the attack.
The star dancer has pleaded not guilty but has admitted "moral responsibility" for what happened to the ballet chief because he spoke badly of Filin in front of Zarutsky.
Dmitrichenko and Zarutsky could face 12 years in prison if convicted of collusion, but that figure could drop if they are sentenced individually.