Robert J Mueller 40, of Chicago was born in Evergreen Park, IL. to Bob and Cathy (nee Coglianese) Mueller and passed away September 27, 2026. Bobby was the dear brother of Bill (Holly Hunley) Mueller, Late Kevin (Elyse Nikonchuk) Mueller, fond uncle of Maggie, and Jack, God father of Gianna Vaccaro, honorary God father of Noli and James Sallay, loving nephew and cousin to many. Bobby will truly be missed by all; he was a great friend. A visitation will be held at Kurtz Memorial Chapel 102 E. Francis Rd. New Lenox, IL. 60451 on Sunday October 4, 2026, from 3PM until time of services at 7:30PM.