Objectives: To present a detailed confession from a perpetrator of Shaken Baby syndrome. Methods: Case study. Results: We present a confession of Shaken Baby syndrome describing how the perpetrator severely injured a 3 year old with repeated bursts of acceleration-deceleration (shaking). The child sustained retinal and intracranial hemorrhage. Details of the confession and circumstances by which it was obtained lead us to believe its accuracy. Conclusions: Accurate perpetrator confessions offer useful windows into realities and pathophysiology of abusive head trauma.