He is the last person known to have seen the 20-year-old co-ed from New York, who had spent the evening partying hard with pals. And there has also been some suggestion the petite fashion merchandising student may have been hammering cocaine, OD'd and panicked pals hid her body.
A police source said:"It's very disappointing we have this life and death investigation and this guy isn't saying a thing."
Rosenbaum, 21, along with Lauren's boyfreind. Jesse Wolff, are
