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MIAMI (CBSMiami/AP) — Authorities in North Florida arrested a mother in connection to the death of her 2-year old son who overdosed on morphine.

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Gainesville police said 26-year-old Tracey Wells was arrested Tuesday after toxicology tests confirmed the toddler died of morphine toxicity on July 27, 2014.

Authorities said Wells waited 9 hours before calling 911.

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Investigators believe the boy, Erin Wells, was fed morphine to calm him down.

Wells had recorded video of Erin falling and unable to keep his eyes open.

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