Houston police released an artist's sketch and surveillance images of a cyclist who they say shot and killed Mark Hausknecht, an acclaimed cardiologist who treated former President George H.W. Bush.

Houston police released an artist's sketch and surveillance images of a cyclist who they say shot and killed Mark Hausknecht, an acclaimed cardiologist who treated former President George H.W. Bush.

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Houston police release sketch and photos of suspect in killing of George H.W. Bush's cardiologist

Houston police released an artist's sketch and surveillance images of a cyclist who they say shot and killed Mark Hausknecht, an acclaimed cardiologist who treated former President George H.W. Bush.