Joseph Pappas, Man Suspected of Killing George HW Bush's Doctor, Found Dead

Suspect in murder of doctor who treated Bush 41 commits suicide

Chief Art Acevedo says murder suspect Joseph Pappas' advanced weapons training placed him at the top of the priority list for Houston police.

As CrimeOnline previously reported, police identified Joseph Pappas as the suspect in the fatal July 20 shooting of Mark Hausknecht, who was killed while riding his bike in Houston.

Police had been involved in an intense manhunt since Wednesday for Pappas, who they called armed, extremely unsafe and possibly suicidal, according to Houston Police Chief Art Acevedo.

Police conducted a search warrant at Pappas' residence Tuesday night into Wednesday morning and discovered a "very extensive intelligence file" that the suspect had allegedly gathered on Hausknecht, according to Acevedo.

Pappas is suspected of murdering Dr. Mark Hausknecht, a cardiologist who had treated the former president.

Hausknecht was also a 1971 graduate of Tunkhannock High School in Pennsylvania.

The suicide brought to a conclusion a massive manhunt for Pappas, a former police officer who was well trained in the use of firearms and said to be an excellent marksman.

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Houston police said they are unable to comment about whether Pappas might have a hit list. The suspect did not comply with officers' commands and when backup closed in, Pappas shot himself in the head.

Police believe Pappas' motive was a more than two-decade grudge against the interventional cardiologist, after his mother died during surgery in 1997.

The employee found a wallet belonging to Pappas that had been thrown on the ground and contacted the Houston police. Acevedo says the doctor's murder was unwittingly captured by a METRO bus on July 20, and shows the precision with which Pappas, an ex-deputy constable, was able to kill the prominent doctor. He apparently mentioned "something about suicide" to the officer, Acevedo said. They named him Wednesday as a suspect in the physician's killing.

"I am thankful today for quite a few things, No. 1 that we will end this week with a great sense of relief in the City of Houston, the Texas Medical Center", the chief said.

Acevedo said a shootout would've occurred had cops not cornered Pappas. "I am most grateful, however, for the many wonderful years our family shared together".

KHOU 11 News investigative reporter Jeremy Rogalski learned Pappas once worked for a deputy constable in Harris County and recently tried to sell several guns and ammo online. "We continue to support (Hausknecht's) family and pray for them during this hard time".

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