wmur's andy hershberger explains. reporter: lawyers for convicted killer eric windhurst are asking a superior court judge to knock five years off his sentence for murder. windhurst pleaded guilty to killing daniel paquette back in 2006, a case that went unsolved for 20 years. >> we think of him as exactly what he is, a cold blooded murderer. reporter: victor paquette fought for two decades to keep a spotlight on his brother's 1985 death. when the case was finally cracked and windhurst was sentenced to a minimum of 15 years in prison, he felt he had >> he's where he deserves to be for sure. we'd like to keep him there for every day possible st. sentence was 15 to 36, and he deserves every bit of it. reporter: the lawyer is petitioning the court for awe law that allows for a reduced sentence after serving two-thirds of the minimum. a motion filed this month in merrimack county by windhurst's attorney says he's not a threat to the community and has worked to improve himself while behind bars. victor paquette says his fam