Kristi Noem did publicly claim that US Marshals partnering with ICE detained a cannibal who started to eat himself on a deportation flight, but there is no independent or official evidence to confirm the truth of this incident.
Fact Check: “Noem said: I was talking to some US Marshals who were partnering with ICE, they said they had detained a cannibal, put him on a plane to take him home, and he started to eat himself."

FactVerify
Source: factverify.com
Key Evidence
Kristi Noem publicly stated that US Marshals told her about detaining a cannibal who started eating himself on a deportation flight.
news.meaww.comnews.meaww.comFact Check: Did Kristi Noem say a cannibal tried to eat himself on an ICE... However, no official ICE or law enforcement agency has confirmed this incident independently, and no further evidence has emerged to support the claim.
What the Evidence Shows
The claim consists of two main components: first, that Kristi Noem stated she spoke with US Marshals working with ICE who reported detaining a cannibal; second, that this individual began eating himself while on a deportation flight and required medical attention. Multiple news reports and videos confirm that Noem made this statement during a press briefing, repeating the story as relayed to her by law enforcement officials.news.meaww.comnews.meaww.comFact Check: Did Kristi Noem say a cannibal tried to eat himself on an ICE...
However, beyond Noem's recounting, there is no corroborating evidence from ICE, US Marshals Service, or independent authorities verifying the existence of such an individual or the described behavior. The story has been widely reported in various media outlets but primarily as a repetition of Noem's claim without additional verification. Given the extraordinary nature of the claim, detaining a cannibal who engaged in self-cannibalism mid-flight, one would expect official statements or documentation if true.
The absence of such evidence and reliance solely on Noem's anecdote means the claim cannot be substantiated. Furthermore, some sources reporting the story have partisan or sensationalist tones, which calls for caution. Without official confirmation or credible eyewitness accounts beyond Noem's statement, the factual accuracy remains unproven.
Therefore, while Noem did say it, the actual occurrence of the event is unverifiable based on available information.