Daniel Thomas O'Brien, 9 months, passed away peacefully in the arms of his loving parents after a courageous battle against cancer.  In his short time, Danny touched and enriched the lives of countless friends and family.  Danny's story is one of pure love and we are forever grateful for the time we shared with him. Danny is survived by his parents Mary and Rory O'Brien and big sisters Maggie and Catherine. Grandparents Daniel and Patricia O'Brien, Kai Iaukea, Tom and Mary Dean Moss, Great Grandmother Bernice McKillip, aunts and uncles Daniel (Shannon), Cheryl (Tyrone), Joseph (Angela), Margaret (Chris), and Jake. Fond cousin to Liam and Cormac O'Brien, Thomas Anderson, Sammy and John Moss, and Hugh, James, and Mary Catherine Tennyson.  A funeral mass will be said on Friday May 15, 2015 at St. Andrews parish 3546 N. Paulina Street, Chicago, IL 60657, at 11:30 am, with a visitation at the church from 9:30 am-11:30 am.  In lieu of flowers, donations can be made to The Danny O'Brien Rhabdoid Tumor Research Fund.   http://www.stbaldricks.org/hero-funds/ohdannyboy/