Authorities Thursday released details about the case of a 23-year-old woman who fled to Mexico after allegedly killing her 55-year-old boyfriend, who was found decapitated. Alyssa Marie Lira of Anaheim was charged with murder on Monday with a sentencing enhancement for the personal use of a deadly weapon. According to the Orange County District Attorney’s Office, the victim had been Lira’s boyfriend for two months. Lira is due to be arraigned on Feb. 13 and is being held without bail at the Orange County Jail, according to the district attorney’s office. Lira faces a maximum sentence of 26 years to life in prison if convicted on all counts.