Sean's possible relatives are Timothy Nicholas Kostelnik, Timothy S Kostelnik, Kaylin Kostelnik and 4 other people. 70 Niles Dr, Valparaiso, In 46383 is where Sean lives. In addition to Valparaiso, Sean also lived in Valparaiso. Sean turned 49 years old. Records link phone number (219) 548-8001 with Sean’s details. 1975 is his birth date.