The Oklahoma Medical Examiner's office confirms to ET that hypothermia was the cause of country singer Craig Strickland's death after he embarked on a hunting trip in Kaw Lake this past December. His friend, Chase Morland, also died during the excursion.
Strickland was found dead on Jan. 4 after he was reported missing on Dec. 27. Strickland's body was recovered in a "thick tree and brush" that made it difficult to locate him because of the camouflage hunting gear he was wearing.
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The 29-year-old musician's death was ruled accidental by the medical examiner.
Last week, the late singer's wife, Helen Strickland, tweeted out a pic of her husband's newly completed headstone. "Craig's headstone turned out amazing!" she wrote. "Thank you Matt Snow from Signature Stone for making our vision a reality!"
WATCH: Country Singer Craig Strickland's Body Found, Wife Tweets -- 'Thank You Lord for Leading Us to Him'
The former beauty queen has kept her husband's memory alive on social media. "I will forever cherish our year of marriage," she Instagrammed. "I love you Craig Michael."