In the news this morning, it wasn't an accident. The Germanwings commercial jet that crashed on Tuesday was deliberately flown into the French Alps by the plane's 27-year-old German co-pilot. The jaw-dropping announcement was made yesterday. What was the motive, and how did he do it? Those questions remain unanswered this morning as the families of the 149 passengers, including three Americans, who perished in the crash meet with German officials today.