He's a self-confessed anti-Semite terrorist. He confessed that he killed RFK due to his support of Israel. Whatever lies he is telling now doesn't change that. He should have been executed pursuant to his original sentence.
Hating Israel because you were ethnically cleansed from your family’s homeland is a pretty good reason and not at all anti-semetic.
Whether you believe Sirhan or not, the forensic evidence conclusively proves there was more than one shooter.
Why the RFK assassination gets so much less attention than JFK’s, I’m not sure.
But the evidence is pretty shocking.