View Photo Gallery: McQueary is cited by a grand jury report as witnessing Jerry Sandusky allegedly sodomizing a 10-year-old boy in a Penn State locker room..

Mike McQueary, the wide receivers coach who has played a central — if as yet uncertain — role in the Penn State child sex-abuse scandal, spoke very briefly with CBS News but offered no further explanation for what he might have seen Jerry Sandusky do to a child in 2002.

“This process has to play out,” McQueary told Armen Keteyian, who had asked McQueary when he would be willing to talk. “I just don’t have anything else to say.”

Asked to describe his emotions, he replied: “All over the place. Just kind of shaken.”

Keteyian: “Crazy?”

McQueary: “Crazy.”

Keteyian: “You said what [earlier], like a ...?”

McQueary: “Snow globe.”

Keteyian: “Like a snow globe.”

McQueary: “Yes, sir.”

McQueary told a grand jury that, when he was a graduate assistant in 2002, he saw Sandusky rape a young boy in a locker room shower. According to the grand jury report, he contacted his father and then coach Joe Paterno. He was criticized for his alleged inaction and, because of threats against him, was not on the field for Penn State’s game Saturday against Nebraska. He is on leave from the university.

Keteyian said that McQueary — making his first public comments, such as they were — told him off camera of concerns for his safety and for his coaching future.

McQueary e-mailed a friend, according to the Associated Press, that he stopped the assault and went to police. The e-mail, dated Nov. 8 and written from McQueary’s Penn State account, was given to the AP by the friend. “I am getting hammered for handling this the right way ... or what I thought at the time was right,” McQueary wrote. “I had to make tough impacting quick decisions.”

On Monday, he e-mailed ex-teammates. “I did the right thing,” McQueary wrote, according to NBC’s Peter Alexander. “. . . you guys know me . . . the truth is not out there fully . . . I didn’t just turn and run. . . . I made sure it stopped . . . I had to make quick tough decisions . . . ”

. Last week, his father, John, told the New York Times that McQueary was eager to tell his side of the story. “It’s not that he’s not willing,” John J. McQueary, his father, said. “I think it’s eating him up not to be able to tell his side, but he’s under investigation by the grand jury. He’ll make it. He’s a tough kid.”

The interview was the second in two days with a principal figure in the scandal. Sandusky was interviewed by Bob Costas on “Rock Center” on Monday night.

DC SportsBog: Keteyian defends interview