Dr. Christopher Duntsch, a former neurosurgeon in Texas, has been nicknamed “Dr. Death.” From 2011 – 2013, Dr. Duntsch reportedly maimed 33 patients, with two of them later dying after surgery, while working at hospitals in the Dallas-Fort Worth Metroplex. In 2015, Duntsch was indicted on five counts of aggravated assault and one count of harming an elderly person. In 2017, he was sentenced to life in prison, becoming the first known surgeon sentenced to life in prison due to gross malpractice.
 
One of the O.R. nurses Dr. Duntsch worked with was Kyle.
 

“After the surgery began, I started getting the impression that Dr. Duntsch didn’t really know what he was doing,” Kyle says about one of the surgeries he assisted in. Less than 24 hours later, the patient died.
 
Kyle says the next day, he went into the operating room once again with Dr. Duntsch. “As he was working, and he started putting in screws which are meant to go into the spine, every single person in that O.R. told him that’s in soft tissue, and his response was, ‘I know where it’s at. I can see it. It’s in the spine,’” Kyle says.
 
Hear more from Kyle in the video above. And, hear why the doctor who was called in to correct the damage says he questions if Dr. Duntsch was even a doctor.
 
On Thursday's episode of Dr. Phil, “Life After ‘Death’: Lethal Surgeon Sentenced to Prison,” a man who was maimed by Dr. Duntsch shares his story, and a woman who says she considered Duntsch her “second son” until her son became a quadriplegic after undergoing surgery with him speaks out for the first time. Plus, a former FBI criminal profiler weighs in on Duntsch’s character. Check local listings to see where you can tune in.

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WATCH: Man Maimed As Result Of Botched Surgery Says Texas Doctor Is ‘A Quack And A Crazy Man’