"However, Hans-Jakob Schindler, senior director of the Counter Extremism Project at the International Center for Counter-Terrorism (ICCT), urged caution in ruling out a wider network. “Obviously, everything is possible to do by yourself—you can rent a car by yourself, you can buy gas canisters by yourself, you can build an explosive device by yourself,” he explained. “But all these things in combination give the possibility of a wider support network, who were not in the car but helped the man prepare, and that is really important to determine,” Schindler told German media outlet DW.”"