This is the beloved slain couple who were tied up and stabbed in their Queens home this week.

A photo obtained by The Post shows Frank Olton, 76, and his wife Maureen Olton, 77, whose burnt bodies were found in their modest house in Bellerose Monday.

The couple’s son, an FDNY EMT, learned of the fire because of his parents’ home alarm system and alerted authorities, police said. 3

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A manhunt was launched for the suspect, career criminal Jamel McGriff, 42, who was finally busted Wednesday after using the couple’s credit cards, including at the movies.

Police said he asked to come into the Oltons’ home to charge his phone — and then turned on the generous pair, torturing them for hours. 3

A small memorial stood outside the Oltons’ home Thursday, with flowers and candles.

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