Following a nearly week-long delay, the Kristin Smart Murder trial resumed yesterday. Jurors heard testimony from an investigator with the D.A.’s Office, who described the house where Smart had attended a party the night she disappeared. And the route she likely took on her way back to her dorm. Jurors also heard from a former roommate of Smart’s, who testified that she notified campus police that her roommate had not returned. Adding it was very unusual for Smart to disappear for several days.