Thomasina Tobin, 51, and her husband Patrick, 48, died in a hot tub at a luxury holiday villa in Cullera, near Valencia, after investigators began examining whether a rare suction failure had trapped one of them underwater.
The couple, who lived in London, were found by their teenage children at the Colina del Sol development on Tuesday, August 25. Their sons, aged 14 and 16, raised the alarm after searching the property when their parents failed to respond.
Spanish investigators have ruled out foul play and found no evidence of forced entry or suspicious activity. The Civil Guard’s homicide unit initially handled the case because of marks and scratches found on the bodies, but the emerging theory is that the deaths were the result of a freak accident.
One possibility being examined is suction entrapment, in which a powerful pull from a spa drain or circulation system holds a person underwater. Investigators believe one of the couple may have become trapped before the other entered the water in an attempt to help.
Reports from Spain have suggested that suction marks were more pronounced on Mr Tobin, although accounts have differed over which of the pair first got into difficulty. Police have also examined whether the hot tub’s hydro-massage system could have generated an abnormal force.
Post-mortem examinations are understood to have ruled out drowning as the formal cause of death. Initial findings reported by local media point instead to cardiopulmonary arrest brought on by the extreme physical effort and stress of the incident, although toxicology tests and further examinations remain outstanding.
Investigators have tested the cloudy water and inspected the hot tub’s suction and circulation equipment. A strong chemical smell was also reportedly noted at the scene.
The company that supplied the hot tub has denied responsibility, describing the sequence of events as “practically impossible” and insisting that the equipment could not have caused the deaths. The claim has not been tested publicly and the official investigation remains open.
A representative for Colina del Sol said the holiday resort had operated for years without incident and maintained high safety and quality standards. The representative added that the resort was awaiting the authorities’ conclusions and would not comment further out of respect for the families.
Mrs Tobin, who was originally from Castleblayney in County Monaghan, worked in London as a senior construction and quantity-surveying executive. Her husband, who was born in New Zealand, worked in the technology sector.
Relatives travelled to Spain to support the couple’s children after the discovery. A family notice described the deaths as a sudden tragedy that had left an “immeasurable void” among their relatives and friends.
