News National spotlight back on missing Cuckoo founder 25/02/2023 FacebookTwitterEmail Celebrity chef Wilhelm 'Willi' Koeppen went missing in the early morning of 29 February 1976, with the national spotlight shining again on the cold case. PICTURES: ON FILE By Tyler Wright The mysterious disappearance and suspected murder of celebrity chef and founder of Olinda's Cuckoo restaurant, Wilhelm 'Willi' Koeppen, has once […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password