A summary of the case read at a detention hearing stated the Fort Worth teenager admitted striking Sida Osman on the head twice with a bowling ball, the Fort Worth Star-Telegram reported. The confession allegedly was made after people found the teen suspect crying.
The attack occurred in a fenced back yard of a vacant house after the teen became irritated with the 5-year-old.
Sida's body was found Wednesday, about 18 hours after he was last seen riding his bicycle, the newspaper said.
Associate Judge Kim Brown ordered the teen, whose name has not been released because of his age, be held in custody.
Astronomers offer more expansive view of universe
LGBT community has 'bullied the American people': Bachmann