A Williamsburg teen who was 15 years old when he repeatedly stabbed his grandfather’s home health nurse in 2020 will spend the next 18 to 36 years in prison after rendering guilty pleas in Blair County court in November.

Michael Douglas Watson, 17, was brought before Blair County President Judge Elizabeth Doyle last week to learn his fate after pleading guilty last year to attempted homicide, aggravated assault, recklessly endangering another person, possessing an instrument of crime, and tampering with evidence.

Watson was arrested in April 2020 after attacking his grandfather’s nurse...