Photo by RON JEFFERSAs the I.C. of a stubborn fire involving a three-story wood-frame abandoned building, with a report of a possible squatter inside, Jersey City Deputy Chief Denis Onieal (right) observed conditions that could be hazardous. He remembered from FDNY Deputy Chief Vincent Dunn's (left) book, "Collapse of Burning Buildings," signs of a possible early collapse of such a structure. Onieal ordered his firefighters out of the building. As the last crew, from Engine Co. 9, exited the building and arrived on the street, the structure experienced a pancake collapse. Retired Battalion Chief Jack Farrington, center, was the captain of Engine 9. At the New Jersey Deputy & Battalion Fire Chief's Association's October safety seminar, at New Jersey City University, Onieal thanked Dunn for saving firefighter's lives, that day. Dunn, however, told Onieal that he was the I.C. and saved lives.