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Former Dallas Cowboys DE Marshawn Kneeland had stage 1 CTE when he died by suicide
By NBC 5 DFW (KXAS) Local
· July 7, 2026
· 4 min read
Former Dallas Cowboys defensive end Marshawn Kneeland had Stage 1 CTE when he died by suicide last fall, according to a post-mortem analysis released by the Concussion and CTE Foundation on Tuesday.
The foundation said Kneeland’s family released the results of a post-mortem brain tissue analys...
Key takeaway The foundation said Kneeland’s family released the results of a post-mortem brain tissue analysis done at the Boston University CTE Center that diagnosed Kneeland with Stage 1 (of 4) chronic traumatic encephalopathy.
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Original reporting by NBC 5 DFW (KXAS) Local . Southlake News surfaces reporting from trusted publishers and adds local editorial context so readers can quickly understand what a story means for their community. We attribute every source, link to the original report, and follow a documented editorial standards policy. To understand how stories are selected and reviewed, read our about page .
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Category: local ·
Published: July 7, 2026 ·
Source: NBC 5 DFW (KXAS) Local ·
Reading time: 4 min
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Frequently asked about this story
What is this story about? Former Dallas Cowboys defensive end Marshawn Kneeland had Stage 1 CTE when he died by suicide last fall, according to a post-mortem analysis released by the Concussion and CTE Foundation on Tuesday.
The foundation said Kneeland’s family released the results of a post-mortem brain tissue analys...
When was this published? This article was first published on July 7, 2026 by NBC 5 DFW (KXAS) Local and curated for Southlake News readers.
Who reported this story? This story was reported by NBC 5 DFW (KXAS) Local. To learn more about how Southlake News selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more local coverage from Southlake News, or browse our daily briefing and topic hubs .
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