Who was Frank Wills in the Watergate Hotel break-in?

Question: Who was Frank Wills in the Watergate Hotel break-in?

Answer: Frank Wills was the security guard working at the Watergate Hotel who called the police to report the break-in. He worked the midnight-to-7AM shift at the hotel. In the early morning hours of June 17, 1972, he found evidence that someone had left tape on the door between the garage and the stairwell. He called the police who arrived to find five men bugging the Democratic National headquarters on the sixth floor of the hotel.

During the ensuing investigation and fallout of the Watergate scandal, he was often interviewed about his important role in the event.