A St. Cloud man is in jail for allegedly assaulting his girlfriend. St. Cloud Police Officers were sent to a home on the 500 block of 3rd Street North East where they say a 46-year-old, St. Cloud female was assaulted by her boyfriend, 51-year-old, Kenneth Donell Naylor of St. Cloud. Naylor was arrested on felony domestic assault charges and taken to the Benton County Jail where he is being held for court.