RFK, Jr shared a lengthy Instagram post implicating Thane Eugene Cesar in the death of his father

Robert F. Kennedy, Jr says there is “compelling evidence” that Thane Eugene Cesar, and not Sirhan Sirhan, killed his father Robert F. Kennedy in 1968.

Read More: RFK's children believe there was a second assassin with Sirhan Sirhan

Just hours after Cesar died in the Philippines on September 12, RFK, Jr shared an Instagram post with a lengthy caption that began: “Thane Eugene Cesar died today in the Philippines. Compelling evidence suggests that Cesar murdered my father.”

Robert F Kennedy, Jr (at the front) was one of the pall bearers at his father's funeral (Getty Images)

Robert F Kennedy, Jr (at the front) was one of the pall bearers at his father's funeral (Getty Images)

On June 5, 1968, as Senator Robert F. Kennedy was in the midst of his presidential campaign, he had just concluded a speech responding to his primary win in California when he was fatally shot at the Ambassador Hotel in Los Angeles.

RFK, Jr was 14 years old at the time.

24-year-old Sirhan Sirhan was promptly arrested and charged in the politician's death. He was handed the death penalty, which was later switched to life in prison after California abolished capital punishment.

Sirhan is still being held in a San Diego prison. On August 31, the 75-year-old was stabbed while in prison but is reportedly in stable condition.

Sirhan Sirhan, the night that RFK was assassinated (Getty Images)

Sirhan Sirhan, the night that RFK was assassinated (Getty Images)

RFK, Jr continued in his September 12 Instagram post: “On June 5, 1968, Cesar, an employee in a classified section of Lockheed’s Burbank facility, was moonlighting as a security guard at the Ambassador Hotel. He had landed the job about one week earlier. Cesar waited in the pantry as my father spoke in the ballroom, then grabbed my father by the elbow and guided him toward Sirhan.”

“With 77 people in the pantry, every eyewitness said Sirhan was always in front on my father at a 3-6 feet distance. Sirhan fired two shots toward my father before he was tackled. From under the dog pile, Sirhan emptied his 8 chamber revolver firing 6 more shots in the opposite direction 5 of them striking bystanders and one going wild.”

“By his own account, Cesar was directly behind my dad holding his right elbow with his own gun drawn when my dad fell backwards on top of him. Cesar repeatedly changed his story about exactly when he drew his weapon.”

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“According to the Coroner, Dr. Thomas Noguchi, all 4 shots that struck my father were “contact” shots fired from behind my dad with the barrel touching or nearly touching his body. As my dad fell, he reached back and tore off Cesar’s clip on tie.” 

“Cesar sold his .22 to a co-worker weeks after the assassination warning him that it had been used in a crime. Cesar lied to police claiming that he'd disposed of the gun months before the assassination.”

“Cesar was a bigot who hated the Kennedys for their advocacy of Civil Rights for blacks. I had plans to meet Thane Eugene Cesar in the Philippines last June until he demanded a payment of $25,000 through his agent Dan Moldea. Ironically, Moldea penned a meticulous and compelling indictment of Cesar in a 1995 book and then suddenly exculpated him by fiat in a bizarre and nonsensical final chapter.”

Kennedy, Jr concluded: “Police have never seriously investigated Cesar's role in my father’s killing.”

Read More: Nasty Kennedy family feud as relatives attack RFK Junior over his anti-vaccine stance

You can read RFK, Jr's entire post here:

View this post on Instagram

Thane Eugene Cesar died today in the Philippines. Compelling evidence suggests that Cesar murdered my father. On June 5, 1968, Cesar, an employee in a classified section of Lockheed’s Burbank facility, was moonlighting as a security guard at the Ambassador Hotel. He had landed the job about one week earlier. Cesar waited in the pantry as my father spoke in the ballroom, then grabbed my father by the elbow and guided him toward Sirhan. With 77 people in the pantry, every eyewitness said Sirhan was always in front on my father at a 3-6 feet distance. Sirhan fired two shots toward my father before he was tackled. From under the dog pile, Sirhan emptied his 8 chamber revolver firing 6 more shots in the opposite direction 5 of them striking bystanders and one going wild . By his own account, Cesar was directly behind my dad holding his right elbow with his own gun drawn when my dad fell backwards on top of him. Cesar repeatedly changed his story about exactly when he drew his weapon. According to the Coroner, Dr. Thomas Noguchi, all 4 shots that struck my father were “contact” shots fired from behind my dad with the barrel touching or nearly touching his body. As my dad fell,he reached back and tore off Cesar’s clip on tie. Cesar sold his .22 to a co-worker weeks after the assassination warning him that it had been used in a crime. Cesar lied to police claiming that he'd disposed of the gun months before the assassination. Cesar was a bigot who hated the Kennedys for their advocacy of Civil Rights for blacks. I had plans to meet Thane Eugene Cesar in the Philippines last June until he demanded a payment of $25,000 through his agent Dan Moldea. Ironically, Moldea penned a meticulous and compelling indictment of Cesar in a 1995 book and then suddenly exculpated him by fiat in a bizarre and nonsensical final chapter. Police have never seriously investigated Cesar's role in my father’s killing.

A post shared by Robert F. Kennedy Jr. (@robertfkennedyjr) on

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Senator Robert F. Kennedy was assassinated on June 5, 1968.Getty Images