Of New Lenox, Illinois, passed away peacefully on April 8, 2026 at the age of 83 years.

Born on June 11, 1942, in Joliet, Illinois, Mike lived a life defined by love, faith, dedication, and an extraordinary sense of humor that brightened the lives of all who knew him.

Mike graduated from Joliet Township High School in 1960 and went on to study Marine Biology at Joliet Junior College. Though his dream of working with dolphins required more years of schooling than he could sit still for, this turn of events led him to discover his true calling as a bricklayer. Encouraged by a friend's father to pursue a bricklayer apprenticeship, Mike embarked on a fulfilling career that showcased his perfectionism and craftsmanship. He took immense pride in his work and formed lasting bonds with colleagues who admired his talent and dedication. He worked for many years with A. Horn Inc, Barrington, IL. Among his most memorable projects were building Liberty Junior High School, off Cedar Road, near his home and contributing to the construction of the FBI Building in Chicago. A proud member of the Bricklayers and Allied Craftworkers Union Local 74, Mike's legacy as a skilled tradesman endures in the structures he helped create.

A proud veteran of the U.S. Army, Mike was drafted during the Vietnam War and served with distinction with the 113th Army Band stationed at Fort Knox, Kentucky. By what he humbly described as a miracle, being assigned to the military band, he played with precision and pride. His service earned him the Good Conduct Medal and the National Service Medal. He was also classed as both a Marksman and a Sharpshooter. Mike often reflected on his time in uniform with gratitude and reverence, acknowledging that being part of the band likely saved his life while never diminishing the sacrifices he made during his service. Especially delaying his marriage to his dream girl, and the arduous time spent apart.

Mike was a talented and sought-after drummer. His drumming career began in his school years, continued when he was drafted and served in the Army Band and culminated in playing in several local bands over the years. His most memorable was performing many times at the Billie Limacher Bicentennial Park "Concerts on the Hill" playing Big Band and Swing.

Faith was a keystone of Mike's life. Deeply devoted to his church community, he contributed tirelessly through building maintenance and repair projects when asked. He participated actively in scripture studies alongside like-minded friends. Matthew 6:34 was one of his most-quoted verses, inspiring others to live with trust and courage. Even in his final days, Michael sought solace in his faith, requesting to speak with his pastor to ensure his favorite scriptures would be shared at his funeral. His unwavering commitment to Christ-like behavior left an indelible mark on all who knew him.

Mike's personal life was equally rich and fulfilling. He was a loving husband to his cherished wife and soulmate, Sandra Kay Kostecki, until her passing. A loving and devoted husband, soul mate and best friend until his final breath. A true Prince Charming, who led by example, setting a nearly unreachable standard for those around him. Mike also found joy in woodworking. Whether repairing items around the house or crafting beautiful pieces like chairs and a clock, he approached every project with care and precision. A keen gardener and beekeeper, he delighted in nurturing even the most challenging plants with his enviable green thumb. A birdwatcher who cared for his feathered friends year-round, even heating his bird bath to ensure they could bathe and drink year-round. His yard became a haven for wildlife—affectionately referred to as his "wildlife park". His passion for cultivating life extended beyond birds and plants - it was evident in the way he nurtured relationships with family, friends, and anyone fortunate enough to cross his path.

He is survived by his much-loved sister Elizabeth Hunter (nee Kostecki), his niece Katy (Ian) Bristow, a great-niece Lula (Josh) Apostolou and great-great-niece Vanna Apostolou. Also survived by many near & dear cousins as well as special friends who became treasured family members.

Preceded in death by his loving soulmate and beloved wife Sandra Kay Kostecki (nee Anderson), his parents Theodore Edward Anthony Kostecki and Marjoria Ellen Kostecki (nee Widner), his cherished in-laws Bror Anderson and Helen Bernice Anderson (nee Nordenberg) and his brother-in-law Harold Anderson.

Those who knew Mike remember him as kind-hearted, honorable, occasionally mischievous, and quick-witted with a wicked sense of humor. A devoted family man and loyal friend, he never had a bad word to say about anyone and spent his days ensuring everyone around him felt valued. As one dear friend recently remarked, "The only color in Mike's rainbow is love." Mike's memory will live on through the countless lives he touched with his generosity, warmth, and steadfast faith. May those who mourn him find comfort in their memories of this remarkable man who made the world brighter simply by being himself.

Funeral services will be held at the Carlson-Holmquist-Sayles Funeral Home & Crematory, 2320 Black Road, Thursday, April 23rd at 11:00 A.M. Pastor Graham Roger officiating. Interment Abraham Lincoln National Cemetery. Memorials to the Bone Marrow & Cancer Foundation, will be appreciated. Visitation will be held Thursday from 9:00 A.M. until time of services at 11:00 A.M.