WILLMAR (AP) - A teen who acted as a lookout while his friend's grandmother was killed in her Willmar home has been sentenced to probation and community service.

Sixteen-year-old Devon Jenkins earlier pleaded guilty to unintentional second-degree murder. A Kandiyohi County judge on Monday sentenced Jenkins to complete a youth correctional program, perform 100 hours of community service and serve probation until age 21.

Jenkins is the youngest of three defendants in the death of 79-year-old Lila Warwick. Prosecutors say her own grandson, 18-year-old Robert Warwick, came up with the plan that led 19-year-old Brok Junkermeier to choke and stab the woman last July. Junkermeier's trial is in March. Warwick's has not been scheduled.