The Sydney Morning Herald "Police investigating the backgrounds of all 239 people aboard the missing Malaysia Airlines flight are paying “special attention” to a 35 year-old Chinese Uighur man who undertook flight simulation training, according to a report in a leading Malay language newspaper in Kuala Lumpur."
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"Police are checking the psychological and personal backgrounds of the 227 passengers and 12 crew, including chief pilot Zaharie Ahmad Shah whose house has been raided by police.
"Police questioned his family about his behaviour over the days before the plane’s disappearance, the same as they plan to do for all who were on board."