Aware of the earlier attacks at the World Trade Center, Glick and some of his fellow passengers attempted to foil the hijacking.

During a struggle to reclaim the aircraft, it crashed into a field in Stonycreek Township near Shanksville, Pennsylvania, killing all 33 passengers and seven crew members on board, along with the four hijackers.

[4] Glick and his five siblings, all of whose names begin with the letter "J", grew up in a Jewish family[5][6] in Saddle River, New Jersey.

[10] At the time of his death, Glick worked as a sales executive for Vividence, an e-consulting company in San Mateo, California.

[11] Glick was a resident of West Milford, New Jersey,[12] where he and Lysbeth made their home in a small cottage on a lake.

[11] According to accounts of cell phone conversations, Glick, along with Todd Beamer, Mark Bingham and Tom Burnett, formed a plan to take the plane back from the hijackers, and led other passengers in this effort.

[19] On September 11, 2002, Glick was posthumously awarded the Medal for Heroism, the highest civilian honor bestowed by the Sons of the American Revolution (SAR).

[23] In September 2008, the United States Judo Association (USJA), awarded Glick with an Honorary 10th Degree black belt.