News that a Dallas Cowboys player dies at just 24 years old shook the NFL world on November 6, 2025, when defensive end Marshawn Kneeland was found dead in the Frisco, Texas area hours after fleeing a high-speed police chase. The second-year Cowboys player dies just three days after scoring his first career NFL touchdown, and the circumstances surrounding his death — followed months later by a posthumous CTE diagnosis — turned a local police pursuit into a story about mental health, football, and brain trauma.
Marshawn Kneeland: Biography Table
| Field | Details |
|---|---|
| Full Name | Marshawn Kneeland |
| Date of Birth | July 8, 2001 |
| Place of Birth | Grand Rapids, Michigan |
| Date of Death | November 6, 2025 |
| Age | 24 |
| Nationality | American |
| Profession/Occupation | NFL Defensive End |
| Years Active | 2024–2025 |
| Education | Western Michigan University |
| Dating/Relationship Status | Girlfriend, Catalina Mancera |
| Children | One son, born posthumously on June 11, 2026 |
| Parents | Mother, Wendy Kneeland (predeceased him in 2024) |
| Notable Works | First career NFL touchdown, Monday Night Football vs. Arizona Cardinals (Nov. 3, 2025) |
Who Was Marshawn Kneeland?
Marshawn Kneeland was a 24-year-old defensive end who spent his entire two-season NFL career with the Dallas Cowboys after they selected him 56th overall in the second round of the 2024 NFL Draft. He came out of Western Michigan University as a disruptive edge rusher known for his motor and physicality.
By the time of his death, Kneeland had appeared in 18 career games, split between a knee injury-shortened rookie year and a more active second season in which he started to carve out a regular role in Dallas’s defensive rotation. Teammates and coaches consistently described him as an energetic, upbeat presence in the locker room.
His death arrived at a jarring moment in his career. Just three days earlier, on Monday Night Football, Kneeland had scored the first touchdown of his NFL life on a blocked punt recovery — a highlight that made the news of his death, and the way it unfolded, even harder for the Cowboys organization to process.
Marshawn Kneeland’s Early Life and Education
Growing Up in Grand Rapids, Michigan
Kneeland was born on July 8, 2001, in Grand Rapids, Michigan, and grew up in nearby Wyoming, Michigan. He attended Godwin Heights High School, where he became a standout two-way player rather than a specialist on one side of the ball.
As a senior, Kneeland recorded 110 tackles and 8 sacks on defense while also contributing as a tight end on offense, catching 20 passes for 330 yards and 5 touchdowns. That dual-threat production made him a well-rounded prospect heading into college recruiting.
College Career at Western Michigan University
Kneeland played for Western Michigan University from 2019 to 2023, developing from a raw high school talent into one of the Mid-American Conference’s better pass rushers. His breakout came in his senior season, when he posted 12.5 sacks and earned second-team All-MAC honors.
Across his college career, Kneeland totaled 149 tackles, 4½ career sacks entering his final year, 3 forced fumbles, and 3 pass deflections, with his senior-year numbers including 57 tackles over nine games. Western Michigan head coach Lance Taylor later said Kneeland formed a “special bond” with the program during his first season leading the team.
Marshawn Kneeland’s NFL Career With the Dallas Cowboys
The 2024 NFL Draft and Rookie Season
The Dallas Cowboys selected Kneeland with the 56th overall pick in the second round of the 2024 NFL Draft, betting on his upside as a run-defending edge player. His rookie year was interrupted by a knee injury that required arthroscopic surgery, limiting him to roughly 5–6 games missed and one start across his debut season.
Even in a shortened rookie campaign, Kneeland recorded 17 tackles and showed enough as a rotational piece to suggest a larger role once healthy. Agent Jonathan Perzley later described him as a “hopeful kid” who had to “fight his way” onto the field early in his career.
The 2025 Season and His Only NFL Touchdown
Kneeland played in 7 of 9 games during the 2025 season before his death, recording between 12 and 15 tackles, 4 quarterback hits, 6 quarterback pressures, 1 sack, and a fumble recovery on the year. His signature moment came on November 3, 2025, during a Monday Night Football matchup against the Arizona Cardinals.
In that 27-17 loss, Kneeland blocked a punt and recovered it in the end zone for his first career NFL touchdown — the only touchdown of his brief career. It became an especially poignant highlight once news broke, just three days later, that the Cowboys player dies following a police chase in the Dallas–Frisco area.
How Did Marshawn Kneeland Die? Inside the Frisco Police Chase
The Traffic Stop on the Dallas North Tollway
The chain of events began around 10:30 p.m. on Wednesday, November 5, 2025, when a Texas Department of Public Safety trooper attempted to stop a black Dodge Charger for a traffic violation near Keller Springs Boulevard and the Dallas North Tollway. Kneeland, driving the vehicle, did not stop.
Rather than pulling over, Kneeland accelerated away from the attempted stop, prompting troopers to pursue him with lights and sirens activated as he failed to yield near Headquarters Drive in Frisco.
A High-Speed Chase Through Frisco
What followed was a high-speed pursuit through the Frisco area, with troopers reporting estimated speeds between 132 and 160 mph as Kneeland’s Charger wove through the region near The Star, the Cowboys’ own headquarters and practice facility complex.
The pursuit covered several miles before ending in a crash, with reported speeds at different points in the chase ranging as high as “a buck 32” (132 mph) according to radio traffic from pursuing troopers.
The Crash and Fleeing on Foot
The chase ended when Kneeland’s Dodge Charger sideswiped a Ford F-350 pickup truck and then plowed into a field near the crash site. The truck driver reported losing sight of the Charger in his rearview mirror moments before the collision.
After the crash, Kneeland fled on foot, crossing through a parking lot and past nearby businesses along Warren Parkway. Drone and rooftop footage later released by DPS showed him running south from the wreck with an empty holster, having abandoned the vehicle at the scene.
The Multi-Agency Search for Kneeland
Frisco police, Plano police, and Texas DPS launched a multi-agency search that evening, using K-9 units and drones to try to locate Kneeland. Officers reportedly responded twice to a residence connected to him without making contact, as the search stretched into the overnight hours.
During the search, dispatchers and officers received word of troubling signals: acquaintances described Kneeland’s girlfriend saying “he will end it all,” and a group text reportedly included messages read by authorities as him saying goodbye. Kneeland was also believed to be armed, and he had no history of mental illness on record with responding officers beyond the concerns being raised in real time.
Marshawn Kneeland’s Cause of Death, Explained
Frisco police say Marshawn Kneeland’s cause of death was an apparent self-inflicted gunshot wound, discovered roughly three hours after the initial crash. His body was located near a portable toilet in the search area after investigators used phone-location data that pinged his account between 1:30 and 1:31 a.m. on Thursday, November 6, 2025.
Some search interest around “cowboys player dies in car accident” reflects confusion over how the night began rather than what ultimately caused his death — the crash during the police chase did not kill Kneeland. Authorities have been clear that the manner of death was suicide, discovered after the crash and the hours-long search that followed it.
DPS later released dash-cam, drone, and body-worn-camera footage documenting the chase and search, which is how many of the specific details of that night — the estimated speeds, the empty holster, the search radius — became public. As of the most recent reporting, some outlets noted unverified claims that Kneeland had been driving a stolen vehicle, though this detail has not been consistently confirmed across sources.
Warning Signs and Marshawn Kneeland’s Mental Health History
According to ESPN reporting, Kneeland had a documented mental health episode in 2020 while at Western Michigan, when he was hospitalized after expressing suicidal thoughts and was found on railroad tracks; his girlfriend at the time was reportedly involved in surrendering a firearm connected to that incident. That history resurfaced in coverage after his death as authorities pieced together the warning signs from his final hours.
In the hours before he died, people close to Kneeland picked up on signals that something was seriously wrong — comments about saying goodbye, a girlfriend’s warning that “he will end it all,” and a group text that read, in hindsight, like a farewell. Dispatchers relayed these concerns to officers conducting the search in real time.
Multiple Cowboys teammates spoke afterward about the difficulty of reconciling that history with the person they knew day to day, describing him as upbeat, hardworking, and quick to smile — a reminder that mental health struggles are not always visible from the outside, even to teammates who spend most of their waking hours together.
If you or someone you know is showing warning signs of suicide, the 988 Suicide & Crisis Lifeline offers free, confidential support 24 hours a day — call or text 988 in the United States.
How the Dallas Cowboys, NFL and Teammates Responded
The Dallas Cowboys released an official statement around 8:35 a.m. on November 6, 2025, saying the team learned “with extreme sadness” that a member of their organization had tragically passed away, extending thoughts and prayers to Kneeland’s family and girlfriend, Catalina. The NFL followed with its own statement calling the news “tragic” and pointing teammates and staff toward support and counseling resources.
Agent Jonathan Perzley called Kneeland a “hopeful kid” whose dream with the Dallas Cowboys was “shattered,” describing him as a dearest friend and a respected professional. Western Michigan head coach Lance Taylor recalled Kneeland’s “infectious” energy and the “special bond” he built with the program.
Teammates were especially vocal. Quarterback Dak Prescott spoke with a heavy heart about mental health awareness, recalling his own past advocacy after losing his brother Jace to suicide in 2020, and urged people to “feel however you’re feeling” rather than bottling it up. Defensive lineman Solomon Thomas said “you never know what someone’s going through,” even when they seem to be smiling and dancing every day.
Wide receiver Ryan Flournoy remembered Kneeland as a playful guy who was cracking jokes in the locker room just days before his death, while defensive tackle Osa Odighizuwa said Kneeland gave “110 percent” personally and professionally. Titans defensive tackle Jeffery Simmons and Dolphins receivers coach Robert Prince, who had coached Kneeland earlier in his career, also shared personal reflections on his character.
Marshawn Kneeland’s Posthumous CTE Diagnosis
What Is CTE, and What Did Doctors Find?
In July 2026, roughly eight months after his death, Kneeland’s family confirmed that his brain had been donated for research and posthumously diagnosed with Stage 1 chronic traumatic encephalopathy (CTE) by the Boston University CTE Center. CTE is a progressive brain disease linked to repeated head impacts, typically diagnosed only after death through brain tissue examination.
Dr. Ann McKee, the researcher who led the examination, said she was “not surprised” by the finding, noting that CTE has now been found in nearly half of the athletes under age 30 the BU CTE Center has studied. Kneeland had played tackle football since age seven, giving him roughly 17 years of exposure to repeated head contact by the time of his death.
Family Statement and the Scientific Caveat
Kneeland’s family, including girlfriend Catalina Mancera, said they hoped the diagnosis would raise awareness among high-contact-sport athletes about the long-term risks of head trauma, while stressing that it “does not change the tragedy” of how he died. They framed the CTE finding as important context for understanding his struggles, not an explanation on its own.
The BU CTE Center itself was careful to caution against drawing a direct line between the diagnosis and his death, noting that suicide is “complex and multifactorial” and that a CTE diagnosis should not be treated as the sole cause. Researchers and the family both emphasized that mental health crises like Kneeland’s are rarely explained by any single factor.
Marshawn Kneeland’s Family and Personal Life
At the time of his death, Kneeland lived in Plano, Texas, and was in a relationship with Catalina Mancera, who was pregnant with his child. Their son was born on June 11, 2026, more than seven months after Kneeland died — a birth his family and teammates have described as bittersweet given the circumstances.
Kneeland’s mother, Wendy Kneeland, died unexpectedly in early 2024, about two months before the NFL Draft that made her son a Dallas Cowboys second-round pick. Kneeland reportedly wore a necklace containing her ashes as a way of carrying her with him through his rookie season and beyond. He was also known to be close with his cousin, Mike Brown.
FAQs
Who was Marshawn Kneeland?
Marshawn Kneeland was a 24-year-old defensive end for the Dallas Cowboys, selected 56th overall in the second round of the 2024 NFL Draft out of Western Michigan University. He played two NFL seasons before his death in November 2025.
How did Marshawn Kneeland die?
Kneeland died of an apparent self-inflicted gunshot wound in the Frisco, Texas area in the early morning hours of November 6, 2025, roughly three hours after crashing his car at the end of a high-speed police chase and fleeing on foot.
Was Marshawn Kneeland’s death a car accident?
No. Kneeland crashed his vehicle during a police chase on November 5, 2025, but survived that crash and fled on foot. His actual cause of death, confirmed by Frisco police, was suicide by an apparent self-inflicted gunshot wound found several hours later.
Did Marshawn Kneeland have a history of mental health struggles?
According to ESPN, Kneeland had a mental health hospitalization in 2020 while at Western Michigan after expressing suicidal thoughts. Warning signs also emerged the night he died, including messages that alarmed his girlfriend and friends before authorities located him.
Did Marshawn Kneeland have CTE?
Yes. In July 2026, the Boston University CTE Center posthumously diagnosed Kneeland with Stage 1 chronic traumatic encephalopathy after his family donated his brain for research. Researchers cautioned that the diagnosis provides context but does not by itself explain his death.
What did the Dallas Cowboys and NFL say about his death?
The Dallas Cowboys called Kneeland a beloved member of their organization and extended condolences to his family and girlfriend, Catalina. The NFL echoed the sentiment and pointed players and staff toward mental health support and counseling resources.
What was Marshawn Kneeland’s last game before he died?
Kneeland’s final game was a Monday Night Football matchup against the Arizona Cardinals on November 3, 2025, a 27-17 Cowboys loss. In that game, he scored his first and only career NFL touchdown on a blocked punt recovery, just three days before his death.
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