A Bath man accused of what authorities called a “vicious” knife attack on his girlfriend that nearly killed her is scheduled to plead guilty. Prosecutors say 29-year-old Matthew Wycoff has agreed to plead guilty Friday to a charge of elevated aggravated assault. Sagadahoc County District Attorney Geoffrey Rushlau tells The Portland Press Herald (http://bit.ly/TLcgnG ) the negotiated plea agreement calls for a sentence of 15 years, with eight to serve. In exchange, a charge of attempted murder will be dismissed. Police say Wycoff stabbed the victim about the neck and shoulders with a steak knife in February after the pair had argued in their home. Wycoff fled the apartment but was arrested a short while later at a gas station in Topsham. Sentencing will be at a later date.