Assistant coach Mike McQueary spoke publicly for the first time since the Penn State child abuse scandal broke.  

McQueary has come under intense scrutiny in the Penn State child abuse scandal, because he allegedly witnessed former defensive coordinator Jerry Sandusky sexually assaulting a 10-year-old boy in 2002 in the locker room showers.

CBS News chief investigative correspondent Armen Keteyian briefly interviewed McQueary outside his home. Although McQueary refused to comment on most of the case, stating instead the whole process has to play out, he was willing to remark on his emotions.

Describe your emotions right now, Keteyian asked.

All over the place, just kind of shaken, McQueary said.

Crazy?

Crazy, McQueary replied.

You said like what, Mike?

Like a snow globe.

Like a snow globe? Keteyian asked.

Yes sir.

McQueary is a key witness in the grand jury report that charged Sandusky with sexually assaulting eight victims. According to the report, McQueary reported the incident he witnessed in 2002 to Penn State head coach Joe Paterno.

In an email sent to his friend in 2002, McQueary also said he spoke to police and officials in charge of the Penn State University police. He told his friend that he stopped Sandusky from sexually assaulting the young boy, though he did not use physical violence. McQueary claims he was hammered for handling this the right way, expressing frustration at the situation.

Since Friday, McQueary has been placed on indefinite administrative leave by Penn State.

Keteyian told CBS News that McQueary is rattled and his world has been shaken. McQueary told Keteyian off-camera that he is worried about his personal life, his safety and his professional future as a football coach.

Watch the CBS Report: