The search for a missing Purdue student is getting more intense with each day.
Purdue spokeswoman Jeanne Norberg says police are now using sonar equipment to search for clues in a pond at the far-end of the campus.
Also tonight, a candlelight vigil will be held for the college freshman.
Tomorrow, volunteers will spend the day passing out flyers with 19-year old Wade Steffey's photo.
Steffey disappeared January 13th after he was last seen leaving a party at the Phi Kappa Theta fraternity house on Purdue’s campus.