Any assessment of someone's mental health should be conducted by qualified mental health professionals based on direct evaluation and information from the person in question.
YNW Melly, whose real name is Jamell Demons, faced legal troubles and was charged with two counts of first-degree murder in connection with the deaths of two of his friends. However, being charged with a crime does not necessarily imply mental instability.
It's essential to avoid making assumptions about an individual's mental health or well-being based on external circumstances, legal situations, or public appearances. If you are concerned about someone's mental health, encourage them to seek professional help from a qualified mental health expert.