Louis O. Ruiz, 66, passed way September 23, 2022. Proud Marine serving in Supply Operations. Beloved husband of Helen for 36 wonderful years. Loving father of Monica (Chris) and Brian. Beloved son of the late Luis and Rosa Ruiz, and son-in-law of Roman and the late Cecilia Salazar. Cherished grandfather of Lukas, Clarke, and Ella. Dear brother of David, Richard (Diego), Patricia, and brother-in-law of Marge (Mike) and Steve. Fond uncle of Andrea (Ale), Ricardo, and Joaquin. Visitation will be Tuesday, September 27, from 3:00 p.m. until 7:00 p.m. at Cumberland Chapels, 8300 W Lawrence Ave, Norridge. Family and friends are invited to meet at St. Mary of the Angels Catholic Church, 1850 N Hermitage, Chicago, on Wednesday, September 28, for Mass of Christian Burial at 10:00 a.m. Interment private. Donations may be made to the American Cancer Society, www.cancer.og Info: 708-456-8300