A 10th grader, who is charged with killing his 12-year-old and seriously assaulting his 9-year-old sibling, has been arraigned.
Police say 16-year-old Jackson Borrello killed his 12-year-old sibling and according to his arrest warrant, assaulted his 9-year-old sibling with a knife and hammer.
The young victim is at the hospital right now fighting for their life…