HUNTSVILLE, Texas (AP) — Texas has executed an inmate convicted of the drug-related killings of four people more than 30 years ago, including a woman who was 9-months pregnant.

, 52, insisted he was innocent before receiving a lethal injection Thursday evening at the state penitentiary in Huntsville. He was condemned for the June 1992 slayings, which took place in a Houston home during a drug robbery.

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