A 14-year-old North Texas boy has pleaded guilty to fatally beating a 5-year-old with a bowling ball after becoming irritated when the child kept asking to be taken to the store.

The Fort Worth Star-Telegram reports ( http://bit.ly/17bDs5X) that the teen pleaded guilty Wednesday to capital murder and will be incarcerated for 23 years as part of a last-minute plea agreement. Authorities are not identifying the Fort Worth teen because he's a juvenile.

Sida Osman was found dead in the backyard of a vacant Fort Worth home in June, a day after he was reported missing while riding his bike.

Authorities say the teen had told others that he struck the 5-year-old twice in the head with the ball when the boy kept pestering him.

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Information from: Fort Worth Star-Telegram, http://www.star-telegram.com