Tony arrived at the Nakatomi building in the Pacific Courier truck and went down to the phone junction box, which was located in the basement. He was manually disabling the phone lines until his brother Karl came and started up a chiansaw to cut the phone lines, despite Tony's protests that he was not done yet. He barely manages to patch up the last phone line before they are cut by Karl. Tony glared at his brother as Karl walked away.
Tony and Karl joined their comrades in the 30th floor when they took control of it. He guards Nakatomi's head executive Joe Takagi on the 34th floor as Hans asked for the code to the vault that contains $640 million in negoiatable bearer bonds. After Hans killed Takagi for refusing to give him a code, he orders Tony to dispose of the body. Then they heard the strange noise outside and he and Karl investigate, but couldn't find anyone.
Later, when the fire alarm sounded on the unfinished 32nd floor, Hans sent Tony to check it out. Tony looked around the floor and tried to get the intruder to come out and join the others. Although Tony said he wouldn't kill him, he shot around the room with his MP5 to see where he was. However, he did not find him and John McClane used a power saw to distract him, after which he pulled his Beretta 92 and held it to Tony's neck. Tony asserted that McClane won't hurt him because he is a cop and he has rules to follow. However, John and Tony tussle and their fight leads to the two of them tumbling down a flight of stairs. Tony breaks his neck as he falls and dies.
Later, John puts a santa hat from a mannequin onto his corpse, which he sets on a chair and uses a red permenant marker to write the words: Now I have a machine gun. Ho Ho Ho. This enrages Karl and he vows to kill John to avenge his brother and telling his team that no one kills him but himself. Tony was the first of Hans' group to die.