You could read much of the details about the conspiracy at
https://kennedysandking.com/articles/who-murdered-yitzhak-rabinThe linked article still leaves out a lot though so some of the info I will add from
https://en.wikipedia.org/wiki/Yitzhak_Rabin_assassination_conspiracy_theoriesConspiracy claims
Conspiracy theories have made some or all of the following claims. Others have been strident in opposing these conclusions.[1]
Police reports state that gunpowder was found on Rabin's body and clothing, suggesting that he had been shot at point-blank range, as gunpowder travels only a few inches before dispersing. According to the official version, Amir shot from a distance at which no powder traces could have settled on Rabin's body and clothing.[2][3]
Surgery reports describe a bullet wound with the bullet entrance in the chest[4] are inconsistent with the eyewitness reports and the Kempler video, which suggests that Rabin was shot in the back while walking away from Yigal Amir. Source of this provides link to a video in Hebrew and a written, inaccurate translation to English. Both versions, however, contain no hint that there was a chest entry wound, merely that there was a wound in the chest (can equally be an exit wound). Both versions report two gunshots rather than three.
Rabin would have walked after Amir's shots in a manner inconsistent with gunshot, an impossibility if they shattered the vertebrae.[5][6]
Each medical record describes wounds which are "completely different" in nature to those concluded by the official Shamgar Commission. Medical descriptions of Rabin's condition are described as suddenly appearing to change.[7]
An anonymous physician who consulted Barry Chamish opined that "[t]he first two wounds, to the chest and abdomen occurred before Rabin's arrival. The third, frontal chest wound, had to have been inflicted after he entered the hospital," and that "it is inconceivable that Rabin had no spinal damage. The six members of the operating team were too skilled to have all been wrong about that."[6]
Three police officers who had been present testified that "when Yitzhak Rabin was placed in the car, he showed no visible wounds."[8][9]
Rabin's motorcade took 22 minutes to arrive at the hospital, even though he had a highly experienced chauffeur, and the streets were cordoned off.[10] The distance between the crime scene and the hospital is a five-minute walk.[11]
Police ballistics tests on shell casings found at the scene did not match Amir's gun.[2][12]
No gunpowder residue was found on Amir's hands, clothing, or hair. Gunpowder residue would inevitably have been present if Amir had shot genuine bullets, as opposed to blanks.[3][13]
No blood was seen coming from Rabin at the scene, despite wounds to his lung and spleen, nor was any found later at that location.[8][9] By contrast witnesses describe blood "gushing" from a chest wound upon arriving at hospital.[14]
Some witnesses stated that someone shouted, "It's nothing ... they're blanks. It's a toy gun."[8][15][16]
A Shin Bet (secret service) agent testified that "I heard a policeman shout to people to calm down. The shot is a blank."[8][9]
Policeman Moshe Ephron stated: "The shots didn't sound natural. If they were real shots, they should have sounded much louder."[8][9]
Leah Rabin stated that a security guard told her immediately after the incident that the bullets shot at her husband were "blanks". She further stated that she was told by an Israeli security chief that she "should not worry as the whole thing had been staged."[17]
Amir, who was employed by the Shin Bet in Latvia about two years before the murder,[18] commented at a court hearing, "If I were to tell the whole truth, the entire system would collapse. I know enough to destroy this country."[19][20][21]
Nahum Shahaf, an Israeli physicist who went on to play a major role in the Muhammad al-Durrah affair, has asserted that he had photographic evidence that the wrong man was being held for the assassination. He blamed the assassination on a conspiracy headed by Shimon Peres, who took over from Rabin as Prime Minister and later became the President of Israel.[22][23]