"I DON'T FEEL ANGER"

Lawyers who have represented families in past airline disasters told Reuters that potential lawsuits could focus on whether Germanwings properly screened the co-pilot before and during his employment, and on whether the airline had adequate safety policies controlling access to its cockpits.

Within hours after French prosecutors disclosed their theory that the crash was deliberate, several airlines changed their rules to require two crew members in the cockpit at all times, a measure aleady mandatory in the United States but not in Europe.

Lufthansa announced on Friday that it too would change its rules to require a second crew member in the cockpit. On Thursday, Spohr had said he saw no need to do so, sparking a social media backlash.

Brussels announced it would recommend that rule change to all EU airlines. Such a recommendation can be implemented faster than changing European regulations to impose the requirement.

Robert Tansell Oliver, whose 37-year-old American son Robert Oliver Calvo was killed in the crash, said the family was not eager to sue. His son, a father of two small children, had been working for a fashion company in Barcelona.

"I don't feel anger. I'm really sorry for the parents of that young pilot. I can't imagine what they are going through right now," the father said outside a hotel near Barcelona airport where family members of victims have been staying.

"MAD SUICIDAL ACTION"

French Prime Minister Manuel Valls said the German airline had an obligation to share information about Lubitz.

"I am careful when there is a judicial inquiry, but everything points to a criminal, mad, suicidal action that we cannot comprehend," Valls told iTELE.

Lubitz was described by acquaintances in his hometown of Montabaur in western Germany as a friendly but quiet man who learned to fly gliders at a local club before advancing to commercial aviation as a co-pilot at Germanwings in 2013.

A friend who met Lubitz six years ago and flew with him in gliding school said he had become increasingly withdrawn over the past year.

Before Lubitz became a co-pilot in late 2013, the friend said the two had gone to movies and clubs together. But he noticed at two birthday parties they attended over the past year that he had retreated into a shell, speaking very little.

"Flying was his life," said the friend, who agreed to speak to Reuters about Lubitz's mental state on condition of anonymity. "He always used to be a quiet companion, but in the last year that got worse."