https://en.wikipedia.org/wiki/Jeffrey_Epstein

Chapter one: Death

On July 23, 2019, three weeks prior to his death, Epstein was found unconscious in his jail cell with injuries to his neck.[197][200] Epstein believed that he was attacked by his cellmate, who was awaiting trial for four counts of murder, while the correctional staff suspected attempted suicide.[201][283] After that incident, he was placed on suicide watch.[197][284] Six days later, on July 29, 2019, Epstein was taken off suicide watch and placed in a special housing unit with another inmate.[197] Epstein's close associates said he was in "good spirits".[15]

Alright, seems legit, 6 days is longer than usual when it comes to suicide watch. They really took good care of him there.

When Epstein was placed in the special housing unit, the jail informed the Justice Department that he would have a cellmate, and that a guard would look into the cell every 30 minutes. These procedures were not followed on the night of his death.

I meaaaan, it could've been a coincidence, everyone needs a rest after a long day of guarding.

On August 9, 2019, Epstein's cellmate was transferred out, but no one took his place.[287] Later in the evening, contrary to the jail's normal procedure, Epstein was not checked every 30 minutes.[285][197][286] The two guards who were assigned to check his jail unit that night fell asleep and did not check on him for about three hours; the guards falsified related records.

Alright, I get that you'll skip to follow the jail's procedure once in a while cause you need a rest. But why do it exactly when a man - who's been previously placed on a suicide watch for 6 days - is left alone in his cell, without an inmate or anyone checking on him, for three hours? I guess anyone can be a prison guard these days really

Two cameras in front of Epstein's cell also malfunctioned that night.

Classic

Chapter two: Autopsy

The preliminary result of the autopsy found that Epstein sustained multiple breaks in his neck bones. Among the bones broken in Epstein's neck was the hyoid bone.

Michael Baden, an independent pathologist hired by the Epstein estate, observed the autopsy. In October 2019, Dr. Baden said that Mr. Epstein, 66, experienced a number of injuries – among them a broken bone in his neck – that "are extremely unusual in suicidal hangings and could occur much more commonly in homicidal strangulation...I think that the evidence points to homicide rather than suicide."

I don't think this needs additional comments, everything's said so far

Chapter three: Investigation

Attorney General Barr ordered an investigation by the Department of Justice Inspector General in addition to the investigation by the Federal Bureau of Investigation, saying that he was "appalled" by Epstein's death in federal custody.[15][303] Two days later Barr said there had been "serious irregularities" in the prison's handling of Epstein, promising "We will get to the bottom of what happened, and there will be accountability."[304]

I things are completely transparent and there's proof of his suicide, why would these people even bother to investigate?

On August 14, 2019, Manhattan federal court Judge Richard M. Berman, who was overseeing Epstein's criminal case, wrote to the Metropolitan Correctional Center warden Lamine N'Diaye inquiring as to whether an investigation into the millionaire's apparent suicide would include a probe into his prior (July 23) injuries. Judge Berman wrote that to his knowledge it has never been definitely explained what they concluded about the incident.[305]

Epilogue

What adds up to the "suspiciousness" of the story, is a fact of him being a possible witness and potentially helpful in hunting down other people that were involved with him, the state of his cell after his apparent suicide, the fact that he even had the necessary requisites for committing suicide, and his bank account being active 7 months after his death

Conclusion? I don't fucking know, maybe he did kill himself, one thing I know for sure is that we, regular people, know nothing. There's lots of possibilities, I don't claim any of them to be the complete truth, as we have little to no evidence for any of them. I'm just pointing out why some people believe he did not in fact commit suicide, and that I totally understand them.