This testimony is bad news for WWE Hall of Famer as he fights charges he killed his girlfriend

He's facing disturbing charges.

Dr. John O'Brien testified Wednesday that there is "little evidence" suggesting Jimmy "Superfly" Snuka has a significant history of concussion or other brain trauma which would leave him mentally unfit for standing trial over the alleged murder of his girlfriend in 1983, per 6abc.

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Snuka was charged with murder and involuntary manslaughter over the death of his former girlfriend, Nancy Argentino, just last year after nearly three decades of it standing as a cold case. At the time of her death, an autopsy showed Argentino died of traumatic brain injuries and she had more than three dozen cuts and bruises. Snuka was let off the hook after noting he found her unresponsive in his hotel room.

Prosecutors reopened the case after a 2013 newspaper report raised questions about the case.

Snuka's defense cited head trauma he received in the ring to the deterioration of his brain, per the report. On Wednesday, Snuka's 73rd birthday, O'Brien noted little evidence in Snuka's medical records suggesting such, and his reported impairment only began showing up after the investigation into Argentino's death was reopened.

Snuka went into the WWE Hall of Fame in 1993, and last wrestled at Wrestlemania 25 on April 5, 2009.