HUNTSVILLE, Texas (AP) — A serial killer was put to death Thursday in Texas after the U.S. Supreme Court rejected his lawyers' demand that the state release information about where it gets its lethal injection drug.Tommy Lynn Sells, 49, was the first inmate to be injected with a dose of newly replenished pentobarbital that Texas prison officials obtained to replace an expired supply of the powerful sedative. Sells declined to give a statement. As the drug began flowing into his arms inside the death chamber in Huntsville, Sells took a few breaths, his eyes closed and he began to snore....