The Associated Press reported that Kalmbach is the last of the four teenagers to be sentenced in connection with the February attack. In court, the 16-year-old apologized to the victim, whispering that he was "very sincerely sorry."
The motive for the attack remained uncertain, but Kalmbach, who was portrayed as a "deeply, deeply depressed kid" by his defense attorney, stated that the victim had bullied him prior to the attack, according to the AP. Both police and prosecutors said the group of teenagers planned how they would torture their victim the night before the actual attack.
According to the AP, the torture took place in a shed and involved forcing the boy to eat cat feces, hitting him with a crowbar, shooting him with a BB gun and carving a swastika on his forehead with a box cutter.
The victim's mother told reporters her son is "still very angry, as I am." The AP also reported that the mom said her son's scar has healed but that he still suffers from nightmares and will be attending an alternative high school this fall.