The Oscar-winning actor and the classical pianist likely died several days apart.

The specific cause was hypertensive and atherosclerotic cardiac disease.

The last event recorded on Hackman’s pacemaker occurred Feb. 17.

Betsy Arakawa and Gene Hackman in 1994

Betsy Arakawa and Gene Hackman in 1994.Credit:Jim Smeal/Ron Galella Collection via Getty

The manner of death was ruled as natural, with “no findings of trauma internally or externally.”

The results of the necropsy for the couple’s dog Zinna are still pending.

HisUnforgivencostarMorgan Freemanalso memorialized the actor at the Oscars last Sunday.

Gene Hackman promoting the 2003 film ‘Runaway Jury’

Gene Hackman promoting the 2003 film ‘Runaway Jury’.Vera Anderson/WireImage

Rest in peace, my friend."