Mason Douglas McKay, 44, has been missing since mid-February and is considered endangered because he requires regular medication he did not have with him. The last confirmed communications were a text on February 16, 2025, saying he had boarded an RTC bus and was unsure where he was, and an eyewitness account placing him getting off an RTC bus at Maryland Parkway and Harmon Avenue in Las Vegas on February 18, 2025. Investigators say he may have been treated for a head injury at a Las Vegas hospital before taking a bus toward the UNLV area, and there are unconfirmed leads that he might have been seen near I-15 and Apex after his last confirmed sighting.

McKay is described as 6 feet 2 inches, about 220 pounds, with blue eyes and brown and gray hair. He has a sun-shaped or star-shaped scar on his upper right arm, wears a brace on his left wrist for partial paralysis in his left hand, and may not have had his glasses. He was last seen in a navy blue Patagonia ball cap, dark long-sleeve zip-up hoodie, dark sweatpants, dark New Balance shoes with a white N, and carrying a faded black High Sierra backpack.

If anyone has information about Mason’s movements in Las Vegas or Boulder City around February 16–18, 2025, please contact the Boulder City Police Department.