A 21-year-old American studying abroad in the Netherlands has allegedly been stabbed to death by her suite-mate, authorities said Friday. Sarah Papenheim, from Andover, Minn., was found with multiple stab wounds on Wednesday in a Rotterdam apartment she had been sharing with an as-yet unnamed 23-year-old. The suite-mate was arrested later the same day at Eindhoven train station, 60 miles southeast of Rotterdam. The two lived in the same apartment but had their own rooms, sharing a kitchen and bathroom, police said.