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INDIANA, Pa. (KDKA) — The Indiana County coroner’s office says the investigation into the death of an inmate at SCI Pine Grove is ongoing.

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Thirty-two-year-old Luis Antonio Santiago, of Reading, Pa., was found unresponsive in his cell on Tuesday.

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Santiago was transported to the Indiana Regional Medical Center, where he was pronounced dead just after 11 p.m.

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The coroner says it is too early in the investigation to rule on a cause or manner of death.