A homicide trial is set to begin for a former visiting nurse accused in the morphine death of an 11-year-old central Pennsylvania boy with cerebral palsy.

Fifty-year-old Joy O'Shea Woomer is scheduled for trial Monday in Lancaster County Court.

She's charged in the September 2002 death of 11-year-old Brent Weaver.

Prosecutors say the 50-year-old woman injected the East Hempfield Township boy with a lethal dose of morphine.

The boy's parents have told investigators that their son was in good condition when they left him in Woomer's care. But they say she awoke them the next morning and said he was unresponsive.

Woomer's attorney has argued that there isn't any evidence linking her to the death.