These included that he had a terrible accident as he tried to climb towards the lighthouse at Byron Bay or that one or more persons caused his death and disposed of his body.
A large-scale search was launched, with only a hat believed to belong to Theo located.
The search for missing Belgian backpacker Theo Hayez was conducted around the Cape Byron Lighthouse and State Conservation Area. Source: AAP / Regi Varghese
Police in February announced a $500,000 reward for anyone with significant information about Theo’s case.