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Robert Kelker-Kelly, the actor best known for playing Bo Brady on " Days of Our Lives ," died from arteriosclerotic heart disease, the St. Charles County medical examiner confirmed to Fox News Digital.

The medical examiner ruled his death natural.

Kelker-Kelly, who also worked as a professional pilot, experienced chest and left arm pain shortly before his death at age 62, according to a St. Peters Police Department report obtained by Fox News Digital.

'DAYS OF OUR LIVES' STAR ROBERT KELKER-KELLY IGNORED ALARMING SYMPTOMS BEFORE SUDDEN DEATH: POLICE REPORT

Robert Kelker-Kelly as Bo Brady on set during a wedding scene. (Gary Null / NBCU Photo Bank via Getty Images)

His wife, Allison Kelly, told police she picked up her husband from Spirit of St. Louis Airport at approximately 7:30 p.m. Oct. 3.…