lol at you believing this. It was a hoax. I saw a special on TV regarding that video. It was proven to be fake. Look it up yourself. http://www.wnd.com/2004/03/23657/
And yes, it was a man in a costume.
from the same article:
Quote:
An associate of the deceased filmmaker is challenging the veracity of Heironimus’ story. The Post says it was contacted by Tom Malone, a Minneapolis lawyer, working on behalf of Bob Gimlin, an associate of Patterson’s.
“I’m authorized to tell you that nobody wore a gorilla suit or monkey suit and that Mr. Gimlin’s position is that it’s absolutely false and untrue,” Malone told the paper.