Marco A. Leiva, age 65, of Kingwood, Texas passed away on Friday, March 7th, 2025. Marco was born on May 31st, 1959 to Julio and Sonia Leiva. He was extremely bright and was always willing to offer a helping hand to those in need. He was an Air Force Veteran which inspired his love for aircraft and led him to a long career in aviation mechanics as well as a professor at Teterboro School of Aeronautics. Marco was a fantastic friend, son, brother, and uncle. He had a kind, caring, and gentle spirit, he is survived by his Mother Sonia, his sister and brother in-law Rossana and Alexander, his three daughters Jacqueline, Courtney, and Lauren, and his niece Emily. The family will receive friends on Wednesday, April 2, 2025, from 8:45 - 10:45 AM for visitation at the G. Thomas Gentile Funeral Home, 397 Union Street, Hackensack, followed by the Mass of Christian Burial at Holy Trinity R.C. Church, 34 Maple Avenue, Hackensack, NJ at 11:00 AM, with burial following at St. Joseph Cemetery in Hackensack. To send condolences, for directions, or further information visit: http://www.gentilefuneralservice.com