>> reporter: when jessica bennett and her 19-month-old adopted son jonah boarded a flight from minneapolis to atlanta, just days ago, she never expected to tell this violent story. >> he had came at him like that, so it was, you know, came down that way at jonah's eye right here. >> reporter: jessica and fbi investigators say another passenger, 60-year-old joe hundley, assaulted her little boy on that flight when jonah started to cry. he reportedly told mom, shut that n word baby up. >> i said, what did you just say? he was so drunk that he fell onto my face and his mouth moved over to my ear. >> reporter: then she says hundley slapped the child. >> when i had looked at jonah's face, his eye was swollen here and bleeding. >> reporter: authorities say cases of air rage are up about 30%. earlier this year, a passenger was so drunk and unruly, he was bound with duct tape by fellow passengers. and those memorable outbursts from flight attendants seemingly fed up, but air rage incidents involving children almost unheard of. jonah's dad has a message. >> i hope he's embarrassed.