A Maine mother who’s serving a 37-year sentence for killing her 2 1/2-year-old daughter and leaving her body in a car is appealing to Maine’s highest court.

Leanna Norris,26, of Auburn admitted to investigators that she gave her daughter, Loh Melody Grenda, a high dose of allergy medicine to help her sleep, then suffocated her.

The child’s body was found in June 2013 in a car in Stetson.

Her lawyer argued before the Maine Supreme Judicial Court Thursday morning that Norris was suffering from a major mental illness. The judge who presided over her trial rejected her insanity defense and found her guilty.

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