Dr. Drew Pinsky has joined forces with environmental activist Erin Brockovich to investigate why more than a dozen teenagers are suffering from mysterious Tourette-like symptoms and seizures, and RadarOnline.com has video of their findings.

“I’m stunned by what she had to say,” revealed the TV doctor backstage at his HLN show after meeting with Brockovich.

The pair have both committed to discovering the cause of the bizarre illness that struck down the teens from LeRoy High School in upstate New York, who all developed tics and involuntary verbal outbursts.