Keith Kostelnik

Keith Raymond Kostelnik passed away at the age of 65 on December 15, 2022 in Fontana.
Keith was born to Joseph and Beverly Kostelnik on February 21, 1957 in Detroit, Michigan. Keith grew up with brothers Kevin and Ken and sister Kathy. He graduated from Los Altos High School and later attended San Jose State.
Keith shared 38 years of marriage to Bridgette Kostelnik. Together they had three children: Cindy Machuca, Matthew Kostelnik, and Joseph Kostelnik. Their family line continues with Keith’s daughter in laws, Jessica Dixon and Ashlee Kostelnik and 10 grandchildren.
Keith’s family will remember him as the spelling bee champ, a die-hard LA Kings fan, a devout catholic, building train sets and the long-lasting memories he made with each one of his family members.
Keith is predeceased by his daughter, Amber Kostelnik who passed away on April 16, 2018, Father, Joseph Kostelnik who passed away on November 13, 1996 and his mother, Beverly Kostelnik who passed away on September 16, 2002.
Services for Keith will take place on December 29, 2022 at 3p.m. at Ingold Funeral and Cremation located at 8277 Juniper Ave, Fontana, Ca 92335.
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