From the AP:

FRANKFURT, Germany — The suspect in the slaying of two U.S. airmen at Frankfurt airport has confessed to targeting American military members, a German security official said Thursday as investigators probed what they considered a possible act of Islamic terrorism.

German federal prosecutors took over the investigation into Wednesday’s shooting, which also injured two U.S. airmen, one of them critically. They are working together with U.S. authorities, who said Thursday the suspect was not on any American watch list.

The Air Force identified the victims as 25-year-old Senior Airman Nicholas J. Alden of Williamston, S.C., and Airman 1st Class Zachary R. Cuddeback of Stanardsville, Va.

Hesse state Interior Minister Boris Rhein told reporters in Wiesbaden that the suspect, identified as a 21-year-old ethnic Albanian from Kosovo, was apparently radicalized over the last few weeks. Relatives in northern Kosovo identified him as Arid Uka, whose family has been living in Germany for 40 years.

A reader writes:

HOW COME THIS MAN COULD BE RADICALIZED IN A FEW WEEKS, BUT THE U.S. CAN'T WIN HEARTS AND MINDS IN AFGHANISTAN AFTER 10 YEARS!?