A New Hampshire teen convicted of murdering his sister-in-law and young nephews was sentenced 60-years to life in prison after defense attorneys sought leniency over his deeply troubled childhood. Eric Sweeney, 19, received the sentence at a Concord courthouse Friday after he pleaded guilty to killing 25-year-old Kassandra Sweeney and her young sons — Benjamin, 4, and Mason, just 23 months — at their bucolic Northfield home in 2022. Sweeney was 16 at the time of the murder and living with his