Exclusive: New Details on Naked Suspect at Sky Harbor

We are learning more about a man who caused a security scare at Sky Harbor Airport last week.

Surveillance video shows the man storming into the airport with a knife, then stripping off all his clothes.

Police say the man was upset because he had just lost his job and was having trouble paying his bills. He originally told cops that he was bi-polar and hadn't taken his medicine.

27 year-old Daniel Greene was quickly apprehended and it's all thanks to an alert airport employee.

Todd Pennington tells FOX 10 that he first saw Greene pull up to Terminal 2 and run into the airport.

When Greene began to throw things around near a ticket counter, Pennington jumped in to try and help.

"He (Greene) starts telling me, I'm going to strip down to my underwear and I'm going to embarrass you. I said, well, it's not going to embarrass me."

Airport Police later caught Greene, wrapped him in a yellow blanket, and then took him to jail.

FOX 10's Miriam Garcia reports.