Mindy McCready's cousin has penned an open letter to the troubled country singer and leapt to the defense of her mother Gayle McCready Inge, RadarOnline.com is exclusively reporting.

While James Cartright Jr. admits the troubled songstress is a “very charming person” and “a beautiful, talented woman”, he says the 34-year-old is full of “half-truths and full-blown lies” and is “haunted by her own denial.”

Cartright states in the letter -- sent exclusively to RadarOnline.com -- that he is speaking out to protect Mindy’s four-year-old son Zander, who lives with Gayle in Fort Myers, Florida.

EXCLUSIVE: Country Star Mindy McCready Fighting Her Mom Over Custody Of Son

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• 911 call Country Star
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• Gayle McCready Inge
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• suicide