Diana L. Leone was a 35-year-old woman who was last seen on February 14, 2000, in Las Vegas, Nevada. A white female with red/auburn hair and hazel eyes, she stood about 5 feet 5 inches tall and weighed approximately 120 pounds. At the time of her disappearance, she was reportedly wearing blue jeans, a white T-shirt, and a watch on her right wrist. She also had several identifiable scars, including a scar on her left cheek, a scar on a finger of her left hand, and scarring on the fingertips of
that hand. According to official case information, she has not had any contact with friends or family since the day she was last seen, a circumstance that immediately stood out to those who knew her because of the complete and prolonged silence that followed.
Leone lived in Las Vegas with her longtime boyfriend, David Dale Morgan, and their children. Reports published over the years describe a relationship marked by a documented history of domestic violence. Court records and media accounts indicate that Morgan had previously been arrested and charged in incidents involving Leone, including a 1989 case in which she suffered serious injuries after an alleged assault. Although charges were filed, they were ultimately dropped when Leone declined to testify. Additional allegations of domestic violence surfaced in later years, but those cases were also not successfully prosecuted. Friends, relatives, and investigators would later view this troubled history as an important part of understanding the circumstances surrounding her disappearance.
When Leone vanished in February 2000, she reportedly left behind many of the things people normally take with them when starting a new life, including personal belongings, money, clothing, and her vehicle. She was also known to be close to her children, making her sudden and complete disappearance especially concerning to her family. Morgan reportedly claimed that she had left with another man, but Leone was never reported missing by him. Months later, after hearing nothing from her, a family member alerted authorities. Investigators began examining the case more closely and questioned whether she had truly left voluntarily. According to published reports, evidence found during the investigation led detectives to believe that her disappearance may not have been a voluntary one.
As the investigation developed, law enforcement scrutinized the events leading up to Leone’s disappearance. Media reports state that one of her young children described a violent argument between Leone and Morgan shortly before she vanished. Investigators also reportedly found evidence inside the residence that raised additional concerns. Over time, detectives publicly identified Morgan as the primary suspect in the case, although Leone’s disappearance has never resulted in criminal charges related to her fate. Complicating matters further were allegations linking Morgan to other unresolved disappearances dating back decades. Authorities explored those connections while continuing to search for answers in Leone’s case, but no definitive resolution was reached.
More than two decades later, Diana Leone remains missing, and her case is still listed as an open missing-person investigation. Her family has endured years without knowing what happened to her, while investigators have continued to seek information that could finally provide answers. DNA reference samples from family members have been submitted to assist with identification efforts should new evidence emerge. The story of Diana Leone is one of a woman who disappeared without explanation, leaving behind loved ones, unanswered questions, and a case that continues to draw attention from investigators and advocates who hope that one day the truth about her disappearance will be discovered. Overall, the case centers on the unexplained disappearance of a 35-year-old Las Vegas woman, the troubling circumstances surrounding her final known days, and the enduring effort to determine what became of her after February 14, 2000.Last Seen: Feb 14, 2000
