TMZ - Rapper, XXXTentacion Murder Suspect Reported To Have Been Sexually Assaulted In Jail

XXXTentacion's murder suspect who is sitting in jail was reported to have been sexually assaulted in a Florida jail -- but, that'sjust not true ... according to Broward County Sheriff's Office.

Law enforcement officials at BSO tell us the story assertingDedrick Williams was raped in Broward CountyJail is flat-out false.

The story -- citing someone who works in the Dade County Jail system -- claimed Williams had been showering recently and was ambushed "with an attempted rape."

The report went on to claim that people affiliated withKodak Blackmayhave been involved.The Broward County Sheriff's Office's Public Information Officer,Veda Coleman-Wright, says that story is"unfounded" and that the entire allegedincident did not happen.

Period.What is accurate is that police have ID'd aperson of interest in XXX's murder case -- 22-year-oldRobert Allen, who was seen at the motorcycle shop where X wasgunneddown.Williams remains as the only murder suspectunder arrestfor now -- but, cops aresearching for at least 2 others.