Gabriel is possible as well. Whoever took Beth is likely the one who kept that clean funeral home trap which was sprung to flush her out where she could be taken. In fact there was probably a spy hidden in the funeral home and when her beauty was seen and her singing/piano playing were heard she became irresistible to her kidnappers.
Yes, the funeral home had to be a trap. Kept nice and clean. Food in the cabinets. It seems designed to have people come in and let their guard down.