Mark J. Heinzel, age 47, of Burr Ridge; loving son of Mildred and Michael Heinzel; brother of Michelle, the late Michael, and the late Matthew Heinzel; uncle of Matthew Wieringa; nephew, cousin, and friend of many. Visitation 3 to 9pm Wednesday, April 6^th at Hallowell & James Funeral Home, 1025 W. 55^th St., Countryside. Prayers 9am Thursday, April 7^th from the funeral home to St. John of the Cross Church, Western Springs. Mass 9:45am. Entombment Christ the King Mausoleum at Queen of Heaven Cemetery, Hillside. Funeral Info: 708-352-6500