a half hour after taking off, the jet is back in melbourne with security officers barking commands to passengers. in your seats. everyone in their seats. put your heads down. reporter: police suggest the suspect has a history of mental illness. passengers are being put up for the night and will continue their flight to malaysia tomorrow. david. david kerley with us tonight. thank you, david. another disturbing moment that led to an emergency landing here at home, in grand rapids, michigan. a jetblue flight from new york to san francisco, diverted after a passenger smelled smoke. the flight crew then traced the smell to a smoking carry-on bag, an electronic device with a charred lithium ion battery. the plane eventually continued on to san francisco. overseas tonight, and to afghanistan, one of the worst attacks in years and it comes just as president trump decides whether to send more u.s. troops. a devastating suicide truck bombing in kabul. the moment was captured on an off