HOUSTON (AP) — A federal appeals court has rejected an appeal from a man serving life in prison for burning one of his girlfriend’s children with acid during an argument while in a pickup truck in far North Texas nearly 10 years ago.

(Photo credit: TIMOTHY A. CLARY/AFP/Getty Images)

Tracy Lynn Escobedo contended six jurors at his trial in Gainesville, about 60 miles north of Dallas, were biased when they convicted him of felony injury to a child. The 5th U.S. Circuit Court of Appeals upheld rulings of lower courts when it ruled against him late Monday.

The then 15-year-old victim was among four children burned after a bottle of liquid drain cleaner containing sulfuric acid broke open after he threw it. Testimony showed the acid was used in the manufacturing of methamphetamine.