"New York has obtained a confidential document from the Malaysian police investigation into the disappearance of Malaysia Airlines Flight 370 that shows that the planes captain, Zaharie Ahmad Shah, conducted a simulated flight deep into the remote southern Indian Ocean less than a month before the plane vanished under uncannily similar circumstances. The revelation, which Malaysia withheld from a lengthy public report on the investigation, is the strongest evidence yet that Zaharie made off with the plane in a premeditated act of mass murder-suicide."
https://www.google.ca/url?sa=t&source=web&cd=22&ved=0ahUKEwi0quTMyIrOAhUT6WMKHX_kCZ8QFghpMBU&url=http%3A%2F%2Fnymag.com%2Fdaily%2Fintelligencer%2F2016%2F07%2Fmh370-pilot-flew-suicide-route-on-home-simulator.html&usg=AFQjCNEUeLyV7x893me9VkHQDbQ7GLi2hQ
This should add even more distress to the families but perhaps they are finally getting answers. But why would this report be kept under wraps?