This is why it always had to be the Military.
Absent comprehensive autopsies on all four it is gross negligence to wildly assert that there is no connection between these deaths and the jab.
Furthermore, it is now incumbent upon the authorities and British Airways to perform the autopsies ASAP to rule out such a connection to avoid any criminal culpability for any additional deaths of vaccinated pilots AND any vaccinated passengers who chose to fly after hearing these assurances of no causal connection.
Furthermore, all of the above now applies to EVERY commercial airline company as they are all on notice of these suspicious deaths of the BA pilots.
Bottom line: covid vaxxcines + altitude may be a lethal combination due to the decreased atmospheric pressure at normal cruising altitude of commercial airliners.