Samuel Ralston has been suffering from depression and suicidal tendencies.
Ralston went to bed around 11:30 p.m. Tuesday, and everything appeared to be ok.
Family members woke around 6:30 a.m. Wednesday, and realized that Ralston had left in a 2000 silver four-door Nissan Altima (Indiana tag UMK681).
His departure was unexpected and evidence suggest that he may be a threat to himself.
Ralston is a white man, who just turned 25 last week. He stands around 6'1", and weighs approximately 130 lbs. He has blond hair and blue eyes, and has a tattoo of a star outline in the webbing of his right hand between thumb and index finger.
Around 2:00 in the morning, phone records indicate that Ralston may have been in the area of 3820 Gulf Blvd in St. Petersburg.
If you see him, or know where he might be, contact your local law enforcement agency or the Manatee County Sheriff Office at 941-747-3011.