As Tsotsi tells it, he was summoned by Myeni to where he was handed a list of Eskom executives who were to be axed, a move apparently affirmed a short while later by the president himself, who attended the discussions.
Tsotsi's claims, putting aside our suspicions about why he never protested at the time, shed significant light on how Eskom and its billions may have been manipulated by political interests and other parties.
But they are still only one side of the story. The true test of the resilience of parliament's inquiry now lies ahead as it vows to call Zuma and the Guptas to provide answers - something they have avoided having to do for years.
If, as the increasingly compromised Public Enterprises Minister Lynne Brown asserts, these allegations are untested fabrications, parliament has provided the perfect opportunity for them to be challenged, but will Zuma rise to the challenge?