John Winek News Today

Family members of three slain Riverside residents -- two grandparents and a single mom -- implored parents to protect their children after a Virginia cop catfished and "groomed" a 15-year-old daughter of one of the victims, killed her family and set fire to their home.

Michelle Blandin, the daughter of Mark and Sharie Winek and Brooke Winek's sister, spoke out at a Wednesday news conference about the murders of her relatives in Riverside on Friday at the hands of a Virginia law enforcement officer who preyed on a teenager girl in the household.