[color="#0000FF"][quote="Gladys"]RIP those poor people. I think this was an opportunistic moment. Lubitz had already flown one way that morning with the pilot and crew. He had to have had a sudden flash of his darkness emerge in his pysche as they flew over the area we now know he used to be gliding over with goodness knows what going through his mind then.[quote] [/color]
I don't think this was a spur of the moment thing, it had to be premeditated, because of his negative health and psychological reports, he knew he would never realise his dream career of becoming a Captain status. I think the likely reason is that he did not get the opportunity to carry out his death mission on the first flight that morning because the Captain did not leave the cockpit, therefore he was not left alone on that flight.
It is also reported that he told his girlfriend that he was going to do something spectacular that the world will never forget his name or something to that effect. She found him chilling at times.
According to his doctor, Lubitz should not have been flying that day as he tore up his sick note and never gave it to his employer.
http://www.telegraph.co.uk/news/aviation/11501075/Andreas-Lubitz-planned-spectacular-gesture-that-would-go-down-in-history-claims-ex-girlfriend.html.