Investigators still trying to crack the 23-year-old mystery of "John Smith" in the Dallas motel room.The Texas DPS released this forensic artist rendering of a man found hanging in a Dallas motel room 23 years ago this weekend.Anyone who thinks they may know this man or have information about his identity should contact Mary Brownlee, the Dallas County Medical Examiner's Office Chief Death Investigator at 214-920-5900. May 2, 2009 marks the 23rd anniversary of the death of an unidentified man found hanging in a Dallas motel room. For many, the anniversary will pass unnoticed, but the Dallas County Medical Examiner's Office and the Texas Rangers hope a combined investigative effort, including the work of a forensic artist, will result in his identification. A Texas Ranger forensic artist has developed a forensic drawing, pictured above, to depict the young man's appearance at the time of his death.On May 2, 1986, the man was found deceased in Dallas' La Casita Motel located at 4300 Harry Hines Blvd. The Dallas County Medical Examiner's Office determined that his death was a suicide by hanging, but little else is known about him.The man, most likely in his twenties, used the name "John Smith" while checking into the motel. He claimed that he was from New York City and that he had cancer.He is described as a white man, 6 feet 1.5 inches tall, weighing 154 pounds. He also had blue/gray eyes, light freckles across the center of his face, and dark blonde or light brown, straight hair that was about 4 inches long.He was wearing a white T-shirt (size 46-48), blue jeans (size 32 waist), black cloth belt (Army- style) and white jockey shorts (size 29-30). He was also wearing a white metal, long-link neck chain with a black and white metal pendant, a black plastic digital wristwatch and had an empty brown billfold with the initials "PJK."For more information on this case, please visit the Missing Persons Clearinghouse at http://www.txdps.state.tx.us/mpch/UnidentifiedDetails.asp?id=U8710001.Law enforcement encourages anyone with a missing relative to submit a familial reference sample of DNA by contacting the agency that investigated their relative's disappearance. The process is simple and free, usually consisting of a simple cheek-swabbing, but must be done through a law enforcement agency.