Boy, 12, Charged With Murder After Allegedly Stabbing Twin Sister to Death, Injuring Mother

A 12-year-old Connecticut boy was charged with murder after he allegedly stabbed his twin sister to death and injured his mother.

The boy, who was injured in the incident, was arraigned in his hospital room at Connecticut Children's Medical Center on Tuesday on charges of murder with special circumstances and first-degree assault. He was not identified.

The boy was accused of killing his twin sister and seriously injuring his mother, 56-year-old Janemarie Murphy. The mother was identified by the Hartford law firm Murtha Cullina LLP, where Murphy worked as a lobbyist at the state Capitol.

The state medical examiner ruled the 12-year-old victim died of stabs wounds to the neck and torso, the Hartford Courant reported. Her death was deemed a homicide.

Around 3:30 p.m. on Monday, police received a 911 from a woman who claimed her son had stabbed her and her daughter. Authorities rushed the victims to the hospital, where the girl later died.

Murphy was said to be in the hospital in stable condition, Fox News reported.

"We are devastated by the horrific tragedy affecting our friend and colleague Jane Murphy," Murtha Cullina LLP said in a statement on Tuesday. "Jane has been a valued member of the Government Affairs Group of Murtha Cullina LLP for over 24 years. We are doing all we can to support Jane and her family, and ask everyone to please respect their privacy during this extraordinarily difficult time."

Senator Chris Murphy (D-Conn.) posted a message of condolences to his "friend" Murphy and her family.

"My heart is sick for my friend Janemarie Murphy and her family," the senator tweeted. "What an unfathomable loss. I know the community of West Hartford and her legions of friends at the State Capitol are rallying to her side to make sure the family has all they need."

Murphy's children attended Sedgwick Middle School, which provided counseling to grieving students, staff, parents and the community at large, the Hartford Courant. "Please keep this family, their friends, and all of our children in your thoughts and prayers," Superintendent Tom Moore told the newspaper.

Under Connecticut juvenile justice laws, offenders under 14 years face a maximum of 30 months of probation supervision with or without residential placement. Deputy Chief State's Attorney Kevin Lawlor told the Hartford Courant that only juvenile offenders 15 and older can have their cases transferred to adult court.