The claw hammer killing of a 14-year-old boy by his teenage friend in Leicester provokes outrage in some of Thursday's papers.
The Daily Mail describes it as "Murder by Playstation" because Warren Leblanc, 17, had become "obsessed" by the violent computer game Manhunt.
The Daily Mirror says Manhunt awards points to a "hero" for murdering people.
The paper says the game was banned in New Zealand and the parents of British victim Stefan Pakeerah now want it taken off shelves in the UK.
Kerry's big day
The papers agree that Thursday is, as the Times puts it, "Kerry's day of truth", as the Senator addresses the Democratic Convention in Boston.
The Guardian says John Kerry will have to do something he has failed to do before if he wants to be US president - show Americans what he stands for.
The Financial Times says "Kerry must inspire or lose the faithful forever".
The Daily Mail praises his wife, Teresa Heinz Kerry, who took to the stage on Wednesday to support her husband.
The Daily Telegraph claims the iconic British sports car maker TVR will have a little more "va-va-voomski" after its purchase by a "baby Russian oligarch".
The Independent says the 24-year-old Nikolai Smolensky, with a personal fortune of £55m is rumoured to have paid £15m for the Blackpool-based firm.
The Sun accuses the Home Office Minister, Hazel Blears, of "overbearing arrogance" for comments she made.
Ms Blears told Progress magazine Labour could be in power for decades to come.
There is bad news for smokers in the Daily Express, which reports a warning from the Chief Medical Officer.
Sir Liam Donaldson has said the habit ages the skin by 20 years, causing premature wrinkles and crow's feet.
But there is little sympathy from the Express, which has the headline "Smoking: It makes you ugly".
Featured elsewhere in the paper, Tom Bloor spent nine hours pasting hundreds of photocopied designs to the wall of a subway as part of a Birmingham arts festival.
But cleaners removed them all because environmental health officials had apparently missed an e-mail saying the work was part of a council project.