Again. Zero proof. Think about all the dots to connect for it to be a murder and how few for it to be a suicide. He had absolutely every reason to be suicidal and the evidence says it's very likely. For it to be murder we have to assumed a giant chain of events for which we have proof of none.
* Very powerful people procured his services for something illegal <- Maybe, no proof
* Epstein had incriminating evidence on those powerful people proving their illegal activities <- Maybe, no proof, requires above unproven point to be true
* Powerful people knew what evidence he had, believed he would leverage it to reduce his punishment <- Maybe, no proof, requires all above unproven points to be true
* Powerful people hired ninjas to invade the detention center, evade all the cameras (all but one camera was working and recorded the approaches to his cell), murder Epstein to make it look exactly like a suicide, leave no traces, no witnesses <- Maybe, getting pretty ludicrous by now
You just added another several levels of speculation. Could the CIA pull off an Op like this? Maybe. Have they ever assassinated an American citizen on American soil? Not that we know of. Would they take orders from a president looking to cover up his involvement in sex trafficking and obey without question and leak no details? No. That's pure fantasy.