Sean H. Tiernan, 36, of Arlington Heights was born August 7, 1975 in Wauwatosa, WI to Kathleen (nee Mueller) and the late Terry Tiernan and passed away September 17, 2011 at his residence in Arlington Heights. Sean was the former husband of Andrea J. nee Campos; loving father of Jackson D. and Andrew H. Tiernan; dear brother of Megan (Erich) Specht and cherished grandson of Patricia (late Charles) Mueller. Sean is also survived by many aunts, uncles, cousins and dear friend Claudia Romano. Memorial visitation will be Saturday September 24, 2011 from 2PM until Celebration of Life Service at 6PM at Lauterburg & Oehler Funeral Home 2000 E. Northwest Hwy. Arlington Heights. Interment will be private. Memorials may be made to the Sean H Tiernan Memorial Fund c/o Lauterburg & Oehler Funeral Home.