CEDAR RAPIDS — A Cedar Rapids man who slammed his pregnant girlfriend into a wall and threatened to kill her was sentenced Wednesday to five years in prison.Randelle Denver Brown, 29, was convicted by a Linn County jury Oct. 2 of domestic abuse assault causing bodily injury, abuse assault causing bodily injury, first-degree harassment and obstruction of emergency communications.Brown faced up to 12 years, but 6th Judicial District Judge Ian Thornhill ran the sentences concurrently for a total of five years in prison.