Re-elected Alburquerque Vice Mayor Cayetano Doria, Jr., 57, passed away in the wee hours of Monday.
He reportedly died from myocardial infraction or heart attack while asleep.
He was still rushed to the Holy Name University Medical Center in Tagbilaran City but was declared dead on arrival at past 3 a.m.
His family has yet to issue a statement following his death.
Earlier, Doria was identified as the owner of the passenger jeep which fell off a cliff and into waters off Tagbilaran City leaving three individuals dead and 26 injured.
The jeep was believed to have experienced malfunctioning brakes along the downhill Mansasa-Dampas Road causing the vehicle to barrel towards the railings of the intersecting cliff-side VP Inting Avenue.
It hit four vehicles before it plunged into a shallow area of the sea and turned turtle.