The investigation will proceed based on the county coroner's finding of the cause of death, Penecale said.
The 1,700 students "shouldn't be nervous," said Laurie Ward, chief marketing officer for the college. "This was an isolated incident."
Counseling will be provided for students, Ward said. About 1,000 students live on the central Bucks County campus.
Hillman was majoring in small-animal science, one of the most popular of the 27 majors offered at the private college, founded in 1896. It also offers degrees in equine science, conservation and wildlife management, business, criminal justice, counseling psychology, and media and communications, plus master's degree programs.
New Britain Borough police will head the investigation, assisted by Doylestown Township police and county detectives. South Hall is in New Britain.
Contact Bill Reed at 215-801-2964, firstname.lastname@example.org, or @breedbucks on Twitter. Read his blog, "BucksInq," at www.philly.com/bucksinq.