When
Halo 3 launched about a year ago the parents of Daniel Petric were shot for having taken away his copy of the game. This, for once, has concrete evidence to support the case of video game violence and adolescents.

Petric's parents, Mark and Susan, cared about their son and what games he played. They told Petric that he wasn't able to get the game and he decided to sneak out of the house to make the purchase, against his father's orders. His parents caught him with the game and took it from him. His father put the game in a lockbox in a closet where he also kept a 9mm handgun.

About a month later Petric got the game out of the lockbox. He also took the 9mm handgun with him to the living room and said, as he sat on the couch behind his parents, "Would you guys close your eyes? I have a surprise for you." With that moment at hand, young Daniel Petric shot his mother and his father in the head. His mother died instantly but his father survived. Mark, Daniel's father, said his son shoved the gun into his hand saying, "Hey Dad, here's your gun. Take it."
After the shooting young Petric's sister and her husband came to the door. Daniel said that his parents were in a big argument and said for them to not come in. As reported by the
Northeast Ohio News section of
Cleveland.com states;
"The couple, Heidi and Andrew Archer, testified they heard a moan - possibly their names being groaned - from inside the house, pushed their way in and found the elder Petric wounded and his wife dead. The elder Petric, through his shattered jaw, managed to say his son had shot him, while Daniel tried to blame his father.
Heidi Archer called 9-1-1 and then realized that Daniel had picked up the handgun that had been lying on the couch. Her husband took the gun from the boy, who gave it up without resistance.
The boy ran out of the house and fled in the family van. He was caught by Wellington police a short time later, the Halo 3 game still on the front seat."
Apparently Daniel had suffered from a snowboarding accident to where he was homebound for a year with nothing to do but watch television and play video games. During this time he grew to love the game series by playing it at his friends' homes. His father forbade these games in the house because they were too violent and sexually explicit.
I think it's clear to say that the parents made the right decision to enforce their belief of video game violence to protect their son. However, it backfired on the family. During the court proceedings his family stated that they want him to come home. They cannot heal as a family until they are a whole family. I'm not sure what to think of that. Maybe they don't want to lose another family member to violence.
Source:
GamePro