Houston police released a composite sketch Sunday of the man who allegedly shot and killed George HW Bush's former cardiologist, ABC News reports. Dr. Mark Hausknecht and the suspect were both biking Friday morning when the suspect, described as a "thin but fit" clean-shaven white or Hispanic male in his 30s who is 5'9" or 5'10", passed Hausknecht from behind, then allegedly turned around and shot him. The suspect, who was wearing a dark jacket, khaki shorts, tan baseball cap, and sunglasses at the time, then fled the scene on his mountain bike.
Newly released surveillance photos show both men moments before the shooting; they can be seen at KTRK. Police have released few details about the 65-year-old's killing, including whether it appears to have been a random or targeted attack. A $5,000 reward is being offered for information leading to an arrest, the Houston Chronicle reports. The former president mourned Hausknecht's death in a statement. (Read more murder stories.)