(News.com.au) John Kerry has added credibility to a conspiracy theory that John F. Kennedy's assassin may not have worked alone.
The US Secretary of State has become one of the highest-ranking politicians to publicly doubt that Lee Harvey Oswald was the lone conspirator in Kennedy's murder, admitting to a journalist that he was suspicious of the government's official finding.
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"To this day, I have serious doubts that Lee Harvey Oswald acted alone," Mr Kerry said in an interview broadcast on NBC, timed with the 50th anniversary of Kennedy's death.
"I certainly have doubts that he was motivated by himself, I mean I'm not sure if anybody else is involved… but I have serious questions about whether they got to the bottom of Lee Harvey Oswald's time and influence from Cuba and Russia."