SMITHFIELD, N.C. (WTVD) -- An assisted living facility worker is charged with raping a 79-year-old woman who lived at the facility where he worked.According to the Smithfield Police Department, officers were called to the Brookdale Senior Living facility on Berkshire Road around 3 a.m. on December 19 to investigate the assault.Joseph Ngigi Kariuki, 47, an employee at Brookdale Senior Living, was arrested and charged with second-degree forcible rape.Kariuki is in jail on a $100,000 bond.Brookdale Senior Living released the following statement Monday evening: