14-year-old accused of killing sister: child or adult?

Had she been one year older, a 14-year-old Mundelein girl accused of fatally stabbing her 11-year-old sister would automatically have faced murder charges as an adult under Illinois law.

But because the suspect is younger than 15, Lake County's top prosecutor has discretion in recommending whether she be tried in the juvenile or adult criminal justice systems.

The path chosen could lead to very different destinations: If convicted in adult court, the girl could get 20 to 60 years in prison. A guilty verdict in juvenile court would likely mean juvenile detention for seven years, or until she turns 21.

"This will be a tough decision," said State's Attorney Michael Nerheim, who could spend several weeks reviewing the case before making a recommendation.

Among the factors he'll consider are the girl's age, criminal and mental health history, public safety and the circumstances of the alleged murder, including possible premeditation.

"I want to make sure I have all the necessary information required to make an informed decision," he said.

The 14-year-old remained at a Vernon Hills juvenile detention facility, with arraignment scheduled for Friday.

She'll remain locked up while loved ones pay final respects to her sister, Dora Betancourt, whose funeral will be in Libertyville on Wednesday.

Dora's severely wounded body was found in her bedroom Tuesday morning after police said they responded to a 911 call placed by the 14-year-old.

Authorities have said the teen told police that she had fetched a kitchen knife and stabbed her sister multiple times that morning because she was angry over a fight they had had the prior evening.

The teen, who initially blamed the attack on an intruder, complained that Dora was not grateful for her older sister's efforts around the house.

The children lived with their mother, who had left for work.

A juvenile judge will have the final call on whether the girl is tried as an adult, if Nerheim makes that recommendation, experts said.

"The ultimate question is what is in the best interests of the public," said Alison Flaum, legal director of the Children and Family Justice Center at Northwestern University's law school.

If the teen were convicted in adult court, she would remain in juvenile detention until at least age 17, then be moved into the regular prison system, authorities said.

"The one-year difference in this girl's age has enormous implications for how she can or will be processed," said David Olson, a criminal justice professor at Loyola University Chicago. He added that the "going rate" for an adult murder sentence is about 40 years.

"It's substantial," he said. "Depending on how you view the prospects of rehabilitation or prison, one sentence will allow her a fair amount of life being free."