An arrest has been made in a 50-year-old murder case thanks to the diligent work of some New Jersey college students.

The 84-year-old's DNA was found to be a match on Nov. 4 -- which would have been Mary Schlais' 76th birthday, police noted.

After nearly five decades without answers, the 1974 murder of Mary Schlais has been solved, thanks to groundbreaking work by ...