Stephen went on a personal vacation to Las Cruces, New Mexico. He is an avid mountain biker, climber, and overall outdoor enthusiast and was familiar with the Organ Mountain range and the National Monument area. He was last seen at the Dripping Springs visitor center on July 7, 2019 where he spoke to a volunteer about the various bike trails and mountain peaks in the area. His vehicle was found several days later at the Baylor Canyon Trailhead. His mountain bike was not found near the car. Search and rescue efforts were negative.