NH teen headed to prison for revenge killing of developmentally disabled Wal-Mart cashier

Teen gets prison in NH killing of Wal-Mart cashier

NORTH HAVERHILL, N.H. — A New Hampshire teenager convicted in the revenge killing of a developmentally disabled Wal-Mart cashier is going to prison for it.

Nineteen-year-old Michael Robie, who was heard plotting the 2008 attack in tape-recorded telephone calls from his New Hampshire jail cell, was sentenced Thursday to 20 to 40 years but could serve 15 if he completes education programs.

Robie, of North Haverhill, pleaded guilty previously to assault and conspiracy in the stabbing death of Christopher Gray, of Groton, Vt. Gray, a developmentally disabled 25-year-old, was targeted because he’d been flirting with Robie’s girlfriend at the Wal-Mart where they worked together, in Woodsville.