His firm made its business handling plaintiff's litigation, including representing clients suing breast implant manufacturers, medical facilities, and tobacco companies.

He was a top student at Houston's Lamar High School, showing an aptitude in math and science, and enrolled at Rice University, majoring in engineering; however, after being placed on academic probation for "three of the six semesters there", he spoke with a vocational counselor who recommended career testing to determine the best bet for his future.

[6] Around 8:00 a.m. on October 29, 2009, O'Quinn was driving his Chevrolet Suburban on Allen Parkway in Houston, Texas in rainy weather when the vehicle struck a curb, crossed a grassy median and three lanes of oncoming traffic, and crashed into a tree.

Bill Staney of the Houston Police Department's Vehicular Crimes Division, the Suburban's crash data computer showed the vehicle traveling at 76 mph just before impact, and that O'Quinn never applied his brakes.

The collection included: seven Duesenbergs; the 1911 Rolls-Royce Silver Ghost featured in the film Titanic; John F Kennedy's 1962 Lincoln Continental[broken anchor] Bubble Top limo, and a 1937 Bugatti Type 57 Atlantic.

[4] In September 2006, he bought: a 2005 Lamborghini Gallardo covered with 33 celebrity autographs ($500,000); the Batmobile used in the filming of Batman Forever ($335,000), a 1941 Packard limousine used by President Franklin D. Roosevelt ($290,000), a 1938 Talbot-Lago ($3,350,000); and a 1938 Town Car used by Pope Pius XII ($250,000).

[4] The centerpiece of the collection is a plain grey 1975 Ford Escort GL, once owned by Polish priest Karol Wojtyla – before he went on to become Pope John Paul II.