From mind control, to the missing Malaysian airways flight MH370, here are the top 10 conspiracy theories.
The experts agreed that Shah intentionally depressurized the plane, knocking unconscious all the passengers on board not wearing oxygen masks.
The team of experts also included an oceanographer, a veteran pilot and the former Australian Transport Safety Bureau chief in charge of investigating MH370, according to The Washington Post.
However, a panel of experts assembled for the Australian TV programme 60 Minutes says the evidence suggests Captain Zaharie Amad Shah executed a careful series of manoeuvres to evade detection and ensure the plane disappeared in a remote location.
Shah's family said "pointing a finger toward him does not make them expert investigators - they have to find the plane", according to CBS.
Larry Vance, ex-senior investigator for the Transportation Safety Board of Canada, told the program, "I think the general public can take comfort in the fact there is a growing consensus on the plane's final moments".
Captain Keane, who was born in New Zealand and was a navigator in the Royal New Zealand Air Force and later a fighter pilot and intelligence officer in Britain's Royal Air Force, told The Australian the ATSB should now publicly admit the captain hijacked his own aircraft, flew it until it crashed and abandoned it outside the bureau's search area so it could not be found.
He said: "As the aircraft went across Thailand and Malaysia, it runs down the border, which is wiggling underneath, meaning it's going in and out of those two countries, which is where their jurisdictions are". Cause it's, 'Oh, it's gone.
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In addition, Hardy also attempted to explain the freakish detour the captain took when he made an unexplained turn to fly over his hometown of Penang.
"It did the job because we know, as a fact, that the military did not come and intercept the aircraft", said another expert. So I spent a long time thinking about what this could be, what technical reason is there for this and, after two months, three months thinking about this, I finally got the answer: "Someone was looking out the window".
"It might be a long, emotional goodbye - or a short, emotional goodbye."
Hardy said the maneuvers were clearly deliberate.
In 2016, Australian Prime Minister Malcolm Turnbull similarly speculated that it was "very likely that the captain planned this shocking event".
The governments of Malaysia, China and Australia called off the official search in January 2017.
The search is expected to end mid-June.