Tom Burnett made several phone calls to his wife beginning at 09:30:32 from rows 24 and 25, though he was assigned a seat in row 4. Burnett explained that the plane had been hijacked by men claiming to have a bomb. He also said a passenger had been stabbed with a knife and that he believed the bomb threat was a ruse to control the passengers. He told her to call the authorities, then hung up. During his second call to her, Burnett said the stabbed passenger was dead; he checked for a pulse but found none. It is believed that passenger Mark Rothenberg was the victim. Rothenberg was the only first class passenger who didn't make a phone call after the hijacking. Rothenberg was seated in 5B, and Haznawi sat directly behind him in 6B. On Flight 11, Satam al-Suqami in seat 10B attacked passenger Daniel Lewin, who was seated directly in front of him in 9B. One assumption is that Haznawi attacked Rothenberg, unprovoked, to frighten other passengers and crew into compliance. Alternatively, Rothenberg may have attempted to stop the hijacking and confront the hijackers. Burnett's wife informed him of the attacks on the World Trade Center and he replied that the hijackers were "talking about crashing this plane... Oh my God. It's a suicide mission." He began asking her for information about the attacks, interrupting her from time to time to tell the others nearby what she was saying. Then he hung up. In his next call, Burnett, who had been informed of the attack on the Pentagon, said he was putting together a plan and that "a group" were helping him. He ended his last call by saying, "Don't worry, we're going to do something."