After removing a light-blue button-up shirt to reveal a t-shirt onto which he'd scrawled "KILLER" in black marker, T.J. Lane, who pleaded guilty last month to murdering three teenage boys in a school shooting, smirked as an Ohio judge gave him three life sentences without the possibility of parole.

Lane, who injured three others in his February 2012 rampage at Chardon High School, east of Cleveland, also smirked as the victims' families faced him with their final words. Dina Parmertor, mother of one of the victims, told Lane he is "a pathetic excuse for a human being" and said he deserves "an extremely, slow torturous death."

Lane responded to the grieving families with two brutal sentences: "The hand that pulls the trigger that killed your sons now masturbates to the memory. Fuck all of you." He then gave them the finger.

NBC News reports that Lane was found competent to stand trial last year "despite evidence he suffers from hallucinations and psychosis."

[Image via AP]