we got an officer down there. reports of a stabbing. reporter: june 21st, lieutenant jeff neville was manning his post at bishop international airport in flint, michigan, when amor ftouhi car carried out an alleged terror attack emerging from a bathroom with a 12-inch knife, yelling in arabic, and ambushed him. it was an attack from the rear. it was very sudden, there was no warning. it was very intense. reporter: that s when a quick thinking airport maintenance man jumped in. the way that he reacted was was spectacular. because the maintenance man hadn t been walking beside me i wouldn t be here talking to you today. reporter: and tom, authorities believe fa tutouhi a lone wolf. lieutenant neville is recovering well and says he absolutely plans to return to his post at the airport, tom? alex perez for us tonight. alex, thank you. there was much more ahead on world news tonight this tuesday. the dramatic moment, an 18-wheeler barreled out of control. caught on camer