'Depressed pilot locked co-pilot out of MH370 cockpit and crashed deliberately'

A lifelong friend of the captain of missing flight MH370 has claimed he is likely to have locked his co-pilot out of the cockpit before deliberately crashing into the sea.

Reports claim that the friend, a fellow Boeing 777 pilot, said he believes Captain Zaharie Ahmad Shah is guilty of an atrocity and "it's the necessary conclusion" to one of the world's greatest aviation mysteries.

Zaharie Ahmad Shah who was Captain of Malaysia Airlines flight MH370. An unnamed friend has claimed he 'likely' locked his co-pilot out of the plane before deliberately crashing into the ocean. (Youtube)The unnamed friend, speaking to the Atlantic, said: "It's hard to reconcile with the man I knew. But it's the necessary conclusion."

The friend said Shah likely tricked his inexperienced 27-year-old co-pilot, Fariq Hamid, who was on his final training flight, into leaving the cockpit and locked him out.

He said: "Zaharie was an examiner. All he had to say was 'Go check something in the cabin', and the guy would have been gone."

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The disappearance of flight MH370, five years on
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The disappearance of flight MH370, five years on
A man writes on a message board for passengers, onboard the missing Malaysia Airlines Flight MH370, during its fifth annual remembrance event in Kuala Lumpur, Malaysia March 3, 2019. REUTERS/Lai Seng Sin
A man takes a photo of debris of the missing Malaysia Airlines MH370 during its fifth annual remembrance event in Kuala Lumpur, Malaysia March 3, 2019. REUTERS/Lai Seng Sin
A woman attends the fifth annual remembrance event for the missing Malaysia Airlines flight MH370, in Kuala Lumpur, Malaysia March 3, 2019. REUTERS/Lai Seng Sin
Michelle Gomes, daughter of Patrick Gomes who was the in-flight supervisor onboard the missing Malaysia Airlines flight MH370, comforts her son Rafael Gomes during its fifth annual remembrance event in Kuala Lumpur, Malaysia March 3, 2019. REUTERS/Lai Seng Sin
Family members hold candles during the fifth annual remembrance event for the missing Malaysia Airlines flight MH370, in Kuala Lumpur, Malaysia March 3, 2019. REUTERS/Lai Seng Sin
Li Eryou, whose son Li Yanlin was on the Malaysia Airlines flight MH370 that disappeared on March 8, 2014, poses in front of a sign marking the number of days his son went missing, during a Reuters interview at his house in Handan, Hebei province, China March 1, 2019. Picture taken March 1, 2019. REUTERS/Joyce Zhou
Debris believed to belong to the missing Malaysia Airlines MH370 are pictured in Putrajaya, Malaysia November 30, 2018. REUTERS/Lai Seng Sin
Grace Nathan, whose mother was onboard the missing Malaysia Airlines flight MH370, displays debris believed to belong to MH370 before handing over to Malaysia's Transport Minister Anthony Loke Siew Fook in Putrajaya, Malaysia November 30, 2018. REUTERS/Lai Seng Sin
KUALA LUMPUR, MALAYSIA - FEBRUARY 3: Visitors write messages on the board during a commemoration event to mark the 5th anniversary of the missing Malaysia Airlines MH370 flight in Kuala Lumpur, Malaysia on March 03, 2019. The Boeing 777 Malaysia Airlines MH370 vanished on March 8, 2014 while en route to Beijing from Kuala Lumpur with 227 passengers and 12 crew. (Photo by Adli Ghazali/Anadolu Agency/Getty Images)
KUALA LUMPUR, MALAYSIA - FEBRUARY 3: Family members light candles to pay tribute to missing passengers during a commemoration event to mark the 5th anniversary of the missing Malaysia Airlines MH370 flight in Kuala Lumpur, Malaysia on March 03, 2019. The Boeing 777 Malaysia Airlines MH370 vanished on March 8, 2014 while en route to Beijing from Kuala Lumpur with 227 passengers and 12 crew. (Photo by Adli Ghazali/Anadolu Agency/Getty Images)
KUALA LUMPUR, MALAYSIA - FEBRUARY 3: Malaysian Minister of Transport, Anthony Loke (C) looks at the Wing flap found on Pemba Island, Tanzania which has been identified a missing part of Malaysia Airlines Flight MH370 through unique part numbers traced to 9M-MRO during a commemoration event to mark the 5th anniversary of the missing Malaysia Airlines MH370 flight in Kuala Lumpur, Malaysia on March 03, 2019. The Boeing 777 Malaysia Airlines MH370 vanished on March 8, 2014 while en route to Beijing from Kuala Lumpur with 227 passengers and 12 crew. (Photo by Adli Ghazali/Anadolu Agency/Getty Images)
KUALA LUMPUR, MALAYSIA - MARCH 03: A volunteer from the Department Of Malaysia Ministry Home Affairs (RELA) stands guard near the debris wing flap part of Malaysia Airlines had found in Pemba Island, Tanzania display on the table during 5 Years of Remembrance for Malaysian Airlines MH370 event on March 3, 2019 in Kuala Lumpur, Malaysia. The Boeing 777-200 plane heading from Kuala Lumpur to Beijing with 239 passengers and crew went missing on March 8, 2014. According to Malaysias transport minister Anthony Loke, government is waiting for a fresh proposal from US exploration firm Ocean Infinity or any other interested party before resuming the search for ill-fated flight MH370, five years after tragedy the Malaysian Airlines MH370 flight still on mysery. (Photo by Mohd Samsul Mohd Said/Getty Images)
KUALA LUMPUR, MALAYSIA - MARCH 3: Peoples take pictures of the debris wing flap part of Malaysia Airlines had found in Pemba Island, Tanzania display on the table during 5 Years of Remembrance for Malaysian Airlines MH370 event on March 3, 2019 in Kuala Lumpur, Malaysia. The Boeing 777-200 plane heading from Kuala Lumpur to Beijing with 239 passengers and crew went missing on March 8, 2014. According to Malaysias transport minister Anthony Loke, government is waiting for a fresh proposal from US exploration firm Ocean Infinity or any other interested party before resuming the search for ill-fated flight MH370, five years after tragedy the Malaysian Airlines MH370 flight still on mysery. (Photo by Mohd Samsul Mohd Said/Getty Images)
KUALA LUMPUR, MALAYSIA - MARCH 03: The Malaysia Minister of Transport Anthony Loke speaks to the media at news conference during a 5 Years of Remembrance for Malaysian Airlines MH370 event on March 3, 2019 in Kuala Lumpur, Malaysia. The Boeing 777-200 plane heading from Kuala Lumpur to Beijing with 239 passengers and crew went missing on March 8, 2014. According to Malaysias transport minister Anthony Loke, government is waiting for a fresh proposal from US exploration firm Ocean Infinity or any other interested party before resuming the search for ill-fated flight MH370, five years after tragedy the Malaysian Airlines MH370 flight still on mysery. (Photo by Mohd Samsul Mohd Said/Getty Images)
KUALA LUMPUR, MALAYSIA - MARCH 3: Debris from the wing flap part of Malaysia Airlines with an identification tag had found in Pemba Island, Tanzania display on the table during 5 Years of Remembrance for Malaysian Airlines MH370 event on March 3, 2019 in Kuala Lumpur, Malaysia. The Boeing 777-200 plane heading from Kuala Lumpur to Beijing with 239 passengers and crew went missing on March 8, 2014. According to Malaysias transport minister Anthony Loke, government is waiting for a fresh proposal from US exploration firm Ocean Infinity or any other interested party before resuming the search for ill-fated flight MH370, five years after tragedy the Malaysian Airlines MH370 flight still on mysery. (Photo by Mohd Samsul Mohd Said/Getty Images)
Messages from loved ones to unaccounted for family members are seen on display during a memorial event ahead of the fifth anniversary of the missing Malaysia Airlines flight MH370, in Kuala Lumpur on March 3, 2019. - The Malaysia Airlines jet vanished on March 8, 2014 while en route from Kuala Lumpur to Beijing with 239 people onboard, most of them from China. (Photo by Mohd RASFAN / AFP) (Photo credit should read MOHD RASFAN/AFP/Getty Images)
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It is suspected the plane's passenger cabin was deliberately depressurised by Shah to kill everyone on board hours before the crash.

Before doing so, he could have put on an oxygen mask in the cockpit so he could continue to fly the aircraft for hours.

At around the same time the cabin was depressurised the electrical system was deliberately turned off, making the plane impossible to track by satellite.

In the years since the Malaysia Airlines plane vanished, the leading theory is Shah, 57, deliberately took the plane off course on a carefully planned murder-suicide mission.

Data analysis indicates the Boeing 777-200ER flew over the Indian Ocean until it ran out of fuel and violently slammed into the water with 239 people on board.

Unconfirmed speculation is that Shah - who flew a similar path on his flight simulator at home - was clinically depressed.

- This article first appeared on Yahoo

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