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The disposition of clothing found at the site of a naked suicide attempt or completion can yield valuable clues to the individual's mental state.
Clothes that are neatly arranged point to a planned suicide. Clothes strewn about raise the question of compulsivity or mental disorganization secondary to a severe psychiatric condition, substance abuse, or sexual homicide.
Naked suicide can be associated with any method of suicide; however, anecdotal evidence indicates that it occurs more frequently with hanging, overdose, or drowning, but to a lesser extent in jumping deaths.
Anger and vengeance can be expressed by completing suicide while naked, especially when it is intended to traumatize a survivor. The shock of discovering a naked suicide inflicts an indelible, traumatic memory that can haunt a survivor for a lifetime.12 The person who completes suicide while naked may intend to add insult to a suicide survivor's already devastating injury.
http://www.jaapl.org/cgi/content/full/36/2/240