FORT WORTH, Texas (AP) -

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 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 back yard of a vacant 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.