TEANECK, NJ — The former Ivy League student who vanished in December lost touch with reality after an addiction to energy supplements and penis enlargement pills, Timothy Hamlett's family tells The Daily Beast. The family believes supplements like Pygeum, Ginseng Panax, Vitalikor Male Enhancement, Big Jim and the Twins Penis Enlargement were responsible for the 20-year-old developing psychosis shortly before his disappearance. Hamlett, a former track star at the University of Pennsylvania, hopped a jitney near his Teaneck home into Washington Heights in Manhattan on Dec. 26. It's the last time he's been seen or heard from. "Our son did...