Jose Alfredo Montanez - Sanchez, 19,  of Sioux City, Iowa, passed away unexpectedly Tuesday, April 9 , 2019 at Mercy Medical Center. Funeral Service will be held 10:00am Saturday, April 13 , 2019 at Cathedral of the Epiphany, 1000 Douglas Street, Sioux City, Iowa. Burial will be in Dakota City Cemetery. Arrangements are under the direction of Waterbury Funeral Service of Sioux City.