article_snippet: While investigators search for clues to Lubitz's motivation, recovery workers continue the grim task of searching for the remains of those killed in the March 24 crash.
article_snippet: The remains of at least 78 people on board the plane have been identified so far using DNA analysis.
article_snippet: Naffrechoux warned Monday that "it may not be possible to find the human remains of all the 150 passengers, as some of the human remains of all the 150 passengers may have been pulverized by the March 24 crash.
article_snippet: But French President Francois Hollande, speaking alongside German Chancellor Angela Merkel in Berlin, was more positive, saying that it should be possible to identify all the victims by the end of the week.
article_snippet: A simple stone memorial has been set up at Le Vernet, where grieving relatives of those killed have laid flowers and held prayers.
article_snippet: Laura Smith-Spark, Josh Levs, Pamela Boykoff, Antonia Mortensen, Sandrine Amiel, Margot Haddad, Anna-Maja Rappard and Mariano Castillo contributed to this report.