![Dallas Cowboys Old School on Twitter: "May 6: Rest In Peace-Former Cowboys offensive lineman Mark Tuinei died of a drug overdose on this day in 1999; he was 39. https://t.co/Qrz5y9KAJL" / X Dallas Cowboys Old School on Twitter: "May 6: Rest In Peace-Former Cowboys offensive lineman Mark Tuinei died of a drug overdose on this day in 1999; he was 39. https://t.co/Qrz5y9KAJL" / X](https://pbs.twimg.com/media/EXaxVy7WsAELErf.jpg)
Dallas Cowboys Old School on Twitter: "May 6: Rest In Peace-Former Cowboys offensive lineman Mark Tuinei died of a drug overdose on this day in 1999; he was 39. https://t.co/Qrz5y9KAJL" / X
![FILE--Mark Tuinei (87) is shown in this in 1978 Ponahou High School yearbook photo in Honolulu. Tuinei, a former Dallas Cowboys offensive lineman who helped them win three Super Bowl titles and FILE--Mark Tuinei (87) is shown in this in 1978 Ponahou High School yearbook photo in Honolulu. Tuinei, a former Dallas Cowboys offensive lineman who helped them win three Super Bowl titles and](https://l450v.alamy.com/450v/2pfd597/file-mark-tuinei-87-is-shown-in-this-in-1978-ponahou-high-school-yearbook-photo-in-honolulu-tuinei-a-former-dallas-cowboys-offensive-lineman-who-helped-them-win-three-super-bowl-titles-and-was-considered-the-teams-toughest-player-during-his-15-seasons-was-found-dead-in-his-car-thursday-morning-may-6-1999-in-plano-texas-he-was-39-ap-photo-2pfd597.jpg)
FILE--Mark Tuinei (87) is shown in this in 1978 Ponahou High School yearbook photo in Honolulu. Tuinei, a former Dallas Cowboys offensive lineman who helped them win three Super Bowl titles and
![Dallas Cowboys' Draft Dodgers: Team's All-Time Top 10 Undrafted Players | News, Scores, Highlights, Stats, and Rumors | Bleacher Report Dallas Cowboys' Draft Dodgers: Team's All-Time Top 10 Undrafted Players | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://cdn.bleacherreport.net/images_root/slides/photos/000/748/183/billbates_original.jpg?1298563503)
Dallas Cowboys' Draft Dodgers: Team's All-Time Top 10 Undrafted Players | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
Dallas Cowboys Public Relations on X: "Today the @dallascowboys welcomed Pono Tuinei, wife of the late former Cowboys Mark Tuinei, as an honorary captain vs. @RamsNFL https://t.co/IuMZkjoFEZ" / X
![Mark Tuinei of the Dallas Cowboys before a NFL football game against... | Dallas cowboys, Nfl football, Nfl football games Mark Tuinei of the Dallas Cowboys before a NFL football game against... | Dallas cowboys, Nfl football, Nfl football games](https://i.pinimg.com/originals/a0/21/c0/a021c0fe9d6665c0a98f1d30430efd05.jpg)