Houston Police Department chief Art Acevedo releases a photo of Joseph James Pappas, the suspect in the murder of Dr. Mark Hausknecht, during a press conference at HPD headquarters Wednesday. Photo: Mark Mulligan, Houston Chronicle / 2018
Houston Police released a photo of Joseph James Pappas, the suspect in the murder of Dr. Mark Hausknecht, during a press conference at HPD headquarters Wednesday, Aug. 1, 2018, in Houston. Photo: Houston Police / 2018
Houston Police Department chief Art Acevedo releases a photo of Joseph James Pappas, the suspect in the murder of Dr. Mark Hausknecht, during a press conference at HPD headquarters Wednesday, Aug. 1, 2018, in Houston. Photo: Mark Mulligan, Houston Chronicle / 2018
Houston police released photos of the suspect wanted in the July 20, 2018 killing of Dr. Mark Hausknecht. The suspect is seen biking through an area neighborhood in the latest photos. Photo: Houston Police Department
Surveillance photos released by the Houston Police show a suspect wanted in the killing of Dr. Mark Hausknecht on Friday, July 20, 2018. The suspect is described as wearing a blue, short-sleeved polo shirt, a khaki ball cap and khaki shorts at the time of the shooting. He carried a large, olive green backpag,. Photo: Houston Police Department
Surveillance photos released by the Houston Police show a suspect wanted in the killing of Dr. Mark Hausknecht on Friday, July 20, 2018. The suspect is described as wearing a blue, short-sleeved polo shirt, a khaki ball cap and khaki shorts at the time of the shooting. He carried a large, olive green backpag,. Photo: Houston Police Department
Former President George Bush, right, answers questions about his heart condition as cardiologist Mark Hausknecht laughs during a news conference at Methodist Hospital on Friday, Feb. 25, 2000 in Houston. Bush spent Thursday night in a Florida hospital and was released Friday after being treated for an irregular heartbeat. Doctors will investigate whether Bush's thyroid disorder, called Graves' disease, caused the irregularity. It was responsible for a similar episode he suffered while jogging in May 1991. (AP Photo/David J. Phillip) Photo: DAVID J. PHILLIP/AP / 2000 AP
Former President George Bush, center, waves as he leaves with cardiologist Mark Hausknecht, left, and Bush's family doctor Ben Orman, right, after a news conference at Methodist Hospital Friday, Feb. 25, 2000 in Houston. Bush spent Thursday night in a Florida hospital and was released Friday after being treated for atrial fibrillation. He returned to Houston Friday and was admitted to Methodist Hospital for further tests. (AP Photo/David J. Phillip) Photo: DAVID J. PHILLIP/Associated Press