THREE people were killed and one injured when a light aircraft crashed on a farm outside Heilbron in the Free State on Saturday evening. The dead were identified as Gert van der Merwe (48) his wife Katy (59) and their son Corrie (24) who was piloting the aircraft. A friend, Gerhardus Labuschagne (22) sustained a broken leg in the accident and was taken to the Kroonpark Hospital in Kroonstad, where he is reported to be in a stable condition. The Van der Merwes apparently hired the aircraft, which belonged to the Parys Flying Club.