Marignane - The flight started like any other, the conversation in the cockpit perfectly normal, with co-pilot Andreas Lubitz offering no indication of the horror he would soon allegedly inflict on the other 149 people on board flight 4U 9525.
"For the first 20 minutes, they spoke in a normal fashion, courteous, like normal pilots. There was nothing abnormal," French prosecutor Brice Robin told reporters on Thursday.
He was relaying information from the cockpit voice recorder, captured by one of the "black boxes" discovered among the debris of the Airbus A320 that crashed into the French Alps on Tuesday.