From Police Heroes, a book by author Chuck Whitlock:

Officer Donald McIntyre, thirty-nine, was outside Two World Trade Center, the South Tower, on September 11, but he and four other officers went back in. McIntyre was last seen on the thirty-second floor and climbing, hoping to find his cousin’s husband, John Sherry, a EuroBrokers trader.

McIntyre is survived by his wife, Jeanine and their children Caitlyn, Donald, Jr. and Lauren, who was born on November 27th, 2001. A devoted father, Donald had planned to take the month of December off for paternity leave. He played an active role at home, cooking dinner most nights, running errands, and shopping for his children’s clothes. He also planned to join the Parent-Teacher Association.

The only son of a New York City cop, McIntyre earned numerous citations in his fourteen years with the Port Authority.

Portraits of Grief, The New York Times

Mr. Fix-It to the End

A multitasker before the term became trendy, Donald J. McIntyre never seemed to run short on energy or good intentions. A Port Authority police officer for 15 years, he was also a union trustee – a vigilant, wave-making trustee, said his wife, Jeannine.

But around the house in New City, he was the sort of husband even the neighbors couldn’t seem to get enough of: he shoveled driveways, ran errands, played Mr. Fix-It.

“People were always calling me up and asking if they could borrow my husband,” she said. “It seems like there’s nobody he hasn’t done a favor for.” Mr. McIntyre, 39, banked enough overtime to take December off to stay home for the birth of their third child. He was on duty for the 1993 World Trade Center bombing, escorting workers to safety, and was on the scene of the Sept. 11 disaster. As usual, he was multitasking: when he ran into the towers with his unit, he called his wife and promised to try and get to the 84th floor to search for John A. Sherry, his cousin’s husband, a missing EuroBrokers trader. And he told her to skip work that night because he would not be home in time to baby-sit.