A teenager obsessed with a video game has been convicted of murdering his mother and injuring his father after they took the game away from him.

Copies of video game Halo 3
Daniel Petric was said to be obsessed with the video game Halo 3

Daniel Petric, 17, decided to kill his parents because he was angry his father would not allow him to play Halo 3.
On the night of the murder, the Ohio teen used his father's key to open a box and remove the game as well as a 9mm handgun.
Lorain County Court of Common Pleas in the US heard Petric went into a room and said to his parents: "Would you close your eyes? I have a surprise for you."
Petric's father, Mark, said he was expecting a nice surprise. Instead, his head went numb from the gunshot.
Mark Petric survived the shooting but his wife, Susan, died of a gunshot wound to the head.
James Kersey, defending Petric, said the teenager took the Halo 3 game with him when he fled the scene.
Judge James Burge said the boy's obsession with the game may have warped his sense of reality but rejected his plea of insanity.
"I firmly believe that Daniel Petric had no idea at the time he hatched this plot that if he killed his parents they would be dead forever," Judge Burge said.
Petric may have been addicted, but the evidence also showed he planned the crime for weeks, the judge added.
The teenager was found guilty of aggravated murder, attempted aggravated murder and other charges.
Tried as an adult, he faces a maximum possible penalty of life in prison without parole. No date has been set for sentencing.