Dennis passed away surrounded by family on October 24, 2016 after a lengthy battle with cancer at Peggy Colony’s Center for Hope. Dennis was an insurance broker for almost 50 years. He was then the co-owner of The Redeker Brokerage in NYC until his retirement in 2012. Dennis was brave, strong and a fighter, he survived 9/11/01 and helped his daughter Kendra and others get to safety that day, a true hero. He is survived by his wife Gerry of 40 years, his daughters Jessica Ellen Mackin and Kendra Helen Mackin, his son-in-law Franco Amato and his grandchildren Ryan Kenneth Amato and Madelyn Grace Amato. Also saddened by the loss are his nephew Christopher Mackin and his family, his sister-in-law Nancy Brown and her husband Mark, cousins Joan Burghardt-Murray, George Burghardt, Patrick Mackin and family friends Lorraine and Sandy Maringo and Patricia and the late Anthony DiBiase and many other family and friends. He is predeceased by his parents John and Florence (nee: Russ) Mackin and his brother Douglas Allan Mackin. In lieu of flowers, the family asks for donations to St. Jude’s Children Research Hospital. Funeral arrangements by G. KEENEN O’BRIEN Funeral Home, 984 Avenue C.