The claim that 'Trump killed Elmo' is false and unsupported by any credible evidence; the character Elmo is a fictional Muppet and has not been killed by anyone.
Trump killed Elmo.

Hacked Elmo X Account Shares Antisemitic Posts, Calls Trump Netanyahu's 'Puppet'
Source: rollingstone.com
Key Evidence
Multiple credible sources confirm that Elmo's social media accounts were hacked and used to post offensive content involving references to Trump.
timesofisrael.comtimesofisrael.comHacked Elmo account on X says 'kill all Jews,' calls Trump Netanyahu's 'puppet'
mediaite.commediaite.comElmo Hacked
rollingstone.comrollingstone.comHacked Elmo X Account Shares Antisemitic Posts, Calls Trump Netanyahu's 'Puppet'
There is no evidence of any real harm or death to the character Elmo.
The character remains a fictional entity with no physical existence to be harmed.
bbc.combbc.comSesame Street Elmo's X account shared antisemitic posts
What the Evidence Shows
The statement 'Trump killed Elmo' is a definitive claim that implies a real-world action causing the death of the Sesame Street character Elmo. Elmo is a fictional puppet character created for children's television and does not exist as a living entity. There is no factual basis or credible report indicating that Donald Trump, the current U.S. President as of 2025, has caused harm or 'killed' this character.
Recent news reports indicate that Elmo's official social media accounts were hacked and used to post antisemitic and profane messages referencing Trump, but these are actions of hackers misusing the account, not an actual event involving harm to the character. Additionally, political actions such as budget cuts affecting PBS funding have been reported but do not equate to 'killing' a fictional character.
Therefore, this claim is categorically false and appears to be either a misunderstanding, misinformation, or a satirical statement.