Former WGN reporter, aviation journalist gives theory on disappearance of Malaysia Flight 370

The disappearance of Malaysian Airlines Flight MH370 is one of the biggest aviation mysteries of all time.

The plane vanished more than two years ago and investigators still don't know what happened.

Aviation journalist Christine Negroni explores the plane's disappearance, and other air disasters in her new book.

It's called: "The Crash Detectives: Investigating the World's Most Mysterious Air Disasters." Negroni joined WGN Morning News to talk about the disappearance of MH370 and her book.

It turns out Negroni was a reporter for WGN back in the day, so we even surprised her with a hello from her former coworker, photographer Richard "Ike" Issac.