DALLAS — Keaton Brooks sought treatment for anxiety most of his life. His parents got medical and psychological advice and even found help at a therapeutic boarding school.

But his mom believes his desire to take care of his own perceived problems, with the help of an unregulated over-the-counter herbal supplement , led to his accidental death.

"He knew he had anxiety but he learned a lot of ways to deal with it. More than anything he told me he just wanted to be normal," Alaina Brooks said of her 16-year-old son.

On Feb. 15, Keaton was 12 days shy of his 17th birthday when Alaina Brooks tried to wake him up for school.

"At 8:29 I opened the door to his room. And I said Keats, and he didn't answer me," she said.

Frantic attempts by his mom and by paramedics to revive him failed. Kea

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