Prosecutors are going forward with a third trial for a Granby woman charged with strangling her paramedic wife. A judge declared a second mistrial after jurors deadlocked last week in the murder case of Cara Rintala. Rintala, also a paramedic, is accused of killing Annamarie Cochrane Rintala in March 2010. Jurors also deadlocked in her first trial. Assistant District Attorney Steven Gagne said in court Tuesday in Northampton that he expects to retry the case this year. Superior Court Judge Mary Lou Rup granted Rintala $150,000 bail, an amount agreed to by prosecutors and defense attorney David Hoose.