There's been a wave of new developments this morning regarding Germanwings co-pilot Andreas Lubitz and the downed flight. German prosecutors say that it appears Lubitz researched both suicide methods and cockpit door security during the period from March 16 to March 23, reports the AP; the crash occurred on March 24. The announcement stems from prosecutors' discovery of an iPad in Lubitz's apartment and a review of its browser history, report the New York Times, which has this statement: "During this time the user was searching for medical treatments, as well as informing himself about ways and possibilities of killing himself. On at least one day the person concerned also spent several minutes looking up search terms about cockpit doors and their safety measures."
The revelations come along with the news that the second black-box recorder has been found, reports the AP. Meanwhile, CNN talks to a law enforcement source who says Lubitz went doctor-shopping in advance of the crash: The source says Lubitz saw five to six doctors—including a sleep specialist—and frames that as reflective of his fear that his medical woes would end his career and his desire to find a doctor who could help. (Read more Germanwings crash stories.)