investigators

How it happened has been the subject of deep reporting by journalists, police investigators, forensic specialists, industry safety experts, and a series of criminal and civil court cases.

A plane which crashed near Fife Aiport last year, resulting in the death of the pilot, lost power because of water getting into the engine, investigators have said.

AFP's deputy commissioner of national security, Krissy Barrett, said investigators within the New South Wales Joint Counter Terrorism Team believed that the caravan was "part of a fabricated terrorism plot".

About half of those prisoners are Latino, and Munguia told internal investigators the Mexican Mafia dictates their lives behind bars.

It also noted that investigators found no indication that Mr McCray intended to "cause death or great bodily harm to any of the pledges".