“Epstein didn’t kill himself” is a phrase referring to theories surrounding the death of Jeffrey Epstein that dispute the “official” ruling of suicide by hanging. Epstein, if you don’t know, was an American financier and convicted sex offender with connections to the world’s “elite”.
The most common theory asserts that the true cause of his death was homicide, via strangulation, arranged by one or more co-conspirators to prevent him from revealing any compromising information. As a result, some people have used “epstein” as a verb to refer to instances of murder.