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PORT ARTHUR, Texas -- Police say a Southeast Texas husband and wife have been found shot to death in their home in an apparent murder-suicide.

Port Arthur police identified the pair as John and Patricia Knight, both age 76.

Police Chief Mark Blanton says the couple s son discovered the bodies Wednesday afternoon.

Investigators on Thursday did not immediately say which spouse apparently shot the other before committing suicide. Police did not immediately release a possible motive for the killings but say the couple had unspecified health problems. Investigators did not elaborate.

Autopsies have been ordered.

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