On Saturday, Germans began mourning another violent attack and their shaken sense of security after a Saudi doctor drove a black BMW into a Christmas market teeming with holiday shoppers on Friday evening, killing at least two people, including a small child, and injuring at least 60 others in what authorities called a deliberate attack.

Authorities identified the suspect as a 50-year-old who has been living in Germany for nearly two decades and practicing medicine there.  On Saturday, there were still no answers as to what caused the man to drive into a crowd in the eastern Germany city of Magdeburg.